Professor Timothy Ralph
Professor
School of Mathematics and Physics
+61 7 334 69693
Researcher biography
Professor Ralph obtained a BSc Hons from Macquarie University in 1989 and a PhD in Physics from The Australian National University in 1993. He has held three Australian Research Council Fellowships - Postdoctoral, QEII and Professorial. He is currently Node Director for the ARC Centre of Excellence for Quantum Computation and Communication Technology at the University of Queensland.
Publications
Books
Bachor, Hans and Ralph, Timothy (2019). A Guide to Experiments in Quantum Optics. Weinheim, Germany: Wiley-VCH. doi: 10.1002/9783527695805
Bachor, H. A. and Ralph, T. C. (2004). A Guide to Experiments in quantum optics. 2nd ed. Weinheim: Wiley-VCH.
Book Chapters
Ralph, Tim C. and Pryde, Geoff J. (2009). Optical quantum computation. Progress in optics. (pp. 209-269) edited by Emil Wolf. Oxford, United Kingdom: Elsevier. doi: 10.1016/S0079-6638(10)05409-0
Jeong, H. and Ralph, T. C. (2007). Schrodinger Cat States for Quantum Information Processing. Quantum Information with Continuous Variables of Atoms and Light. (pp. 159-177) edited by Nicolas J. Cerf, Gerd Leuchs and Eugene S. Polzik. London: Imperial College Press.
Jeong, Hyunseok and Ralph, Timothy C. (2007). Schrödinger cat states for quantum information processing. Quantum Information with Continuous Variables of Atoms and Light. (pp. 159-180) Imperial College Press. doi: 10.1142/9781860948169_0009
Symul, T., Lance, A. M., Bowen, W. P., Lam, P. K., Sanders, B. C. and Ralph, T. C. (2006). Quantum State Sharing. Quantum Communications and Cryptography. (pp. 163-186) edited by A. Sergienko. New York: Taylor & Francis.
Ralph, T. C. (2004). Squeezing from lasers. Quantum Squeezing. (pp. 141-170) edited by P D Drummond and Z Ficek. Berlin: Springer.
Ralph, T. C. (2003). Quantum key distribution with continuous variable in optics. Quantum Information with Continuous Variables. (pp. 295-316) edited by Samuel L. Braunstein and Arun K. Pati. Netherlands: Kluwer Academic Publishers. doi: 10.1007/978-94-015-1258-9_21
Journal Articles
Foo, Joshua, Lund, Austin P. and Ralph, Timothy C. (2024). Measurement-based Lorentz-covariant Bohmian trajectories of interacting photons. Physical Review A, 109 (2) 022229. doi: 10.1103/physreva.109.022229
Winnel, Mathew, Wang, Ziqing, Malaney, Robert, Aguinaldo, Ryan, Green, Jonathan and Ralph, Timothy C (2024). Classical-Quantum Dual Encoding for Laser Communications in Space. New Journal of Physics, 26 (3) 033012, 033012. doi: 10.1088/1367-2630/ad295a
Guanzon, Joshua J., Winnel, Matthew S., Lund, Austin P. and Ralph, Timothy C. (2023). Noiseless linear amplification and loss-tolerant quantum relay using coherent-state superpositions. Physical Review A, 108 (3) 032411. doi: 10.1103/physreva.108.032411
Zhao, Jie, Jeng, Hao, Conlon, Lorcán O., Tserkis, Spyros, Shajilal, Biveen, Liu, Kui, Ralph, Timothy C., Assad, Syed M. and Lam, Ping Koy (2023). Enhancing quantum teleportation efficacy with noiseless linear amplification. Nature Communications, 14 (1) 4745, 1-8. doi: 10.1038/s41467-023-40438-z
Villaseñor, E., Winnel, M. S., Ralph, T. C., Aguinaldo, R., Green, J. and Malaney, R. (2023). Protecting classical-quantum signals in free-space optical channels. Physical Review A, 107 (6) 062616. doi: 10.1103/physreva.107.062616
Xing, Wanli and Ralph, T. C. (2023). Pump depletion in optical parametric amplification. Physical Review A, 107 (2) 023712. doi: 10.1103/physreva.107.023712
Mauron, Caroline and Ralph, Timothy C. (2022). Comparison of techniques for distillation of entanglement over a lossy channel. Physical Review A, 106 (6) 062603. doi: 10.1103/physreva.106.062603
Winnel, Matthew S., Guanzon, Joshua J., Hosseinidehaj, Nedasadat and Ralph, Timothy C. (2022). Achieving the ultimate end-to-end rates of lossy quantum communication networks. npj Quantum Information, 8 (1) 129, 1-9. doi: 10.1038/s41534-022-00641-0
Dias, Josephine, Winnel, Matthew S., Munro, William J., Ralph, T. C. and Nemoto, Kae (2022). Distributing entanglement in first-generation discrete- and continuous-variable quantum repeaters. Physical Review A, 106 (5) 052604, 1-9. doi: 10.1103/physreva.106.052604
Su, Daiqin, Dhand, Ish and Ralph, Timothy C. (2022). Universal quantum computation with optical four-component cat qubits. Physical Review A, 106 (4) 042614. doi: 10.1103/physreva.106.042614
Quach, James Q., Ralph, Timothy C. and Munro, William J. (2022). Berry phase from the entanglement of future and past light cones: detecting the timelike Unruh effect. Physical Review Letters, 129 (16) 160401, 1-6. doi: 10.1103/physrevlett.129.160401
Bishop, Lachlan G, Ralph, Timothy C and Costa, Fabio (2022). Billiard-ball paradox for a quantum wave packet. Classical and Quantum Gravity, 39 (17) 175007, 1-27. doi: 10.1088/1361-6382/ac8198
Foo, Joshua, Asmodelle, Estelle, Lund, Austin P. and Ralph, Timothy C. (2022). Relativistic Bohmian trajectories of photons via weak measurements. Nature Communications, 13 (1) 4002, 4002. doi: 10.1038/s41467-022-31608-6
Guanzon, Joshua J., Winnel, Matthew S., Lund, Austin P. and Ralph, Timothy C. (2022). Ideal quantum teleamplification up to a selected energy cutoff using linear optics. Physical Review Letters, 128 (16) 160501, 160501. doi: 10.1103/physrevlett.128.160501
Slussarenko, Sergei, Weston, Morgan M., Shalm, Lynden K., Verma, Varun B., Nam, Sae-Woo, Kocsis, Sacha, Ralph, Timothy C. and Pryde, Geoff J. (2022). Quantum channel correction outperforming direct transmission. Nature Communications, 13 (1) 1832, 1832. doi: 10.1038/s41467-022-29376-4
Onoe, Sho, Guedes, Thiago L. M., Moskalenko, Andrey S., Leitenstorfer, Alfred, Burkard, Guido and Ralph, Timothy C. (2022). Realizing a rapidly switched Unruh-DeWitt detector through electro-optic sampling of the electromagnetic vacuum. Physical Review D, 105 (5) 056023. doi: 10.1103/PhysRevD.105.056023
Foo, Joshua, Onoe, Sho, Zych, Magdalena and Ralph, Timothy C. (2022). Telefilters, telemirrors, and causality. Physical Review A, 105 (3) 033711. doi: 10.1103/physreva.105.033711
Hosseinidehaj, Nedasadat, Winnel, Matthew S. and Ralph, Timothy C. (2022). Simple and loss-tolerant free-space quantum key distribution using a squeezed laser. Physical Review A, 105 (3) 032602. doi: 10.1103/physreva.105.032602
Kish, S. P. and Ralph, T. C. (2022). Quantum effects in rotating reference frames. AVS Quantum Science, 4 (1) 011401, 011401. doi: 10.1116/5.0073436
Esmaeilifar, Leili and Ralph, Timothy C. (2022). Gravitational acceleration estimation with a nonlinear Mach–Zehnder interferometer. Journal of the Optical Society of America B: Optical Physics, 39 (2), 421-426. doi: 10.1364/JOSAB.443339
Guanzon, Joshua J., Lund, Austin P. and Ralph, Timothy C. (2021). Multimode metrology via scattershot sampling. Physical Review A, 104 (3) 032607. doi: 10.1103/physreva.104.032607
Winnel, Matthew S., Hosseinidehaj, Nedasadat and Ralph, Timothy C. (2021). Minimization of information leakage in continuous-variable quantum key distribution. Physical Review A, 104 (1) 012411. doi: 10.1103/physreva.104.012411
Bishop, Lachlan G., Costa, Fabio and Ralph, Timothy C. (2021). Time-traveling billiard-ball clocks: A quantum model. Physical Review A, 103 (4) 042223, 1-13. doi: 10.1103/physreva.103.042223
Hosseinidehaj, Nedasadat, Walk, Nathan and Ralph, Timothy C. (2021). Composable finite-size effects in free-space continuous-variable quantum-key-distribution systems. Physical Review A, 103 (1) 012605. doi: 10.1103/PhysRevA.103.012605
Winnel, Matthew S., Hosseinidehaj, Nedasadat and Ralph, Timothy C. (2020). Generalized quantum scissors for noiseless linear amplification. Physical Review A, 102 (6) 063715. doi: 10.1103/physreva.102.063715
Ralph, T. C. and Chang, Christopher (2020). Spinning up a time machine. Physical Review D, 102 (12) 124013, 1-6. doi: 10.1103/physrevd.102.124013
Dias, Josephine, Winnel, Matthew S., Hosseinidehaj, Nedasadat and Ralph, Timothy C. (2020). Quantum repeater for continuous-variable entanglement distribution. Physical Review A, 102 (5) 052425. doi: 10.1103/PhysRevA.102.052425
Tserkis, Spyros, Thompson, Jayne, Lund, Austin P., Ralph, Timothy C., Lam, Ping Koy, Gu, Mile and Assad, Syed M. (2020). Maximum entanglement of formation for a two-mode Gaussian state over passive operations. Physical Review A, 102 (5) 052418. doi: 10.1103/PhysRevA.102.052418
Onoe, Sho, Tserkis, Spyros, Lund, Austin P. and Ralph, Timothy C. (2020). Multipartite Gaussian entanglement of formation. Physical Review A, 102 (4) 042408. doi: 10.1103/PhysRevA.102.042408
Guanzon, Joshua J., Lund, Austin P. and Ralph, Timothy C. (2020). Controllable quantum interference from two-photon scattershot sources. Physical Review A, 102 (3) 032606. doi: 10.1103/physreva.102.032606
Foo, Joshua, Onoe, Sho, Zych, Magdalena Anna and Ralph, Timothy C. (2020). Generating multi-partite entanglement from the quantum vacuum with a finite-lifetime mirror. New Journal of Physics, 22 (8) 083075, 083075. doi: 10.1088/1367-2630/aba1b2
Hosseinidehaj, Nedasadat, Lance, Andrew M., Symul, Thomas, Walk, Nathan and Ralph, Timothy C. (2020). Finite-size effects in continuous-variable quantum key distribution with Gaussian postselection. Physical Review A, 101 (5) 052335, 052335. doi: 10.1103/physreva.101.052335
Foo, Joshua and Ralph, Timothy C. (2020). Continuous-variable quantum teleportation with vacuum-entangled Rindler modes. Physical Review D, 101 (8) 085006, 085006. doi: 10.1103/PhysRevD.101.085006
Tserkis, Spyros, Hosseinidehaj, Nedasadat, Walk, Nathan and Ralph, Timothy C. (2020). Teleportation-based collective attacks in Gaussian quantum key distribution. Physical Review Research, 2 (1) 013208. doi: 10.1103/physrevresearch.2.013208
Lee, Seung-Woo, Ralph, Timothy C. and Jeong, Hyunseok (2019). Fundamental building block for all-optical scalable quantum networks. Physical Review A, 100 (5) 052303. doi: 10.1103/PhysRevA.100.052303
Allen, Euan J., Ferranti, Giacomo, Rusimova, Kristina R., Francis-Jones, Robert J. A., Azini, Maria, Mahler, Dylan H., Ralph, Timothy C., Mosley, Peter J. and Matthews, Jonathan C. F. (2019). Passive, broadband, and low-frequency suppression of laser amplitude noise to the shot-noise limit using a hollow-core fiber. Physical Review Applied, 12 (4) 044073. doi: 10.1103/PhysRevApplied.12.044073
Xu, Ping, Ma, Yiqiu, Ren, Ji-Gang, Yong, Hai-Lin, Ralph, Timothy C., Liao, Sheng-Kai, Yin, Juan, Liu, Wei-Yue, Cai, Wen-Qi, Han, Xuan, Wu, Hui-Nan, Wang, Wei-Yang, Li, Feng-Zhi, Yang, Meng, Lin, Feng-Li, Li, Li, Liu, Nai-Le, Chen, Yu-Ao, Lu, Chao-Yang, Chen, Yanbei, Fan, Jingyun, Peng, Cheng-Zhi and Pan, Jian-Wei (2019). Satellite testing of a gravitationally induced quantum decoherence model. Science, 366 (6461), 132-135. doi: 10.1126/science.aay5820
Laurenza, Riccardo, Tserkis, Spyros, Banchi, Leonardo, Braunstein, Samuel L., Ralph, Timothy C. and Pirandola, Stefano (2019). Tight bounds for private communication over bosonic Gaussian channels based on teleportation simulation with optimal finite resources. Physical Review A, 100 (4) 042301. doi: 10.1103/PhysRevA.100.042301
Baumeler, Ämin, Costa, Fabio, Ralph, Timothy C., Wolf, Stefan and Zych, Magdalena Anna (2019). Reversible time travel with freedom of choice. Classical and Quantum Gravity, 36 (22) 224002, 224002. doi: 10.1088/1361-6382/ab4973
Kish, S. P. and Ralph, T. C. (2019). Quantum metrology in the Kerr metric. Physical Review D, 99 (12) 124015. doi: 10.1103/PhysRevD.99.124015
Onoe, Sho and Ralph, Timothy C. (2019). Universal transformation of displacement operators and its application to homodyne tomography in differing relativistic reference frames. Physical Review D, 99 (11) 116001. doi: 10.1103/PhysRevD.99.116001
Hosseinidehaj, Nedasadat, Walk, Nathan and Ralph, Timothy C. (2019). Optimal realistic attacks in continuous-variable quantum key distribution. Physical Review A, 99 (5) 052336. doi: 10.1103/PhysRevA.99.052336
Tserkis, Spyros, Onoe, Sho and Ralph, Timothy C. (2019). Quantifying entanglement of formation for two-mode Gaussian states: analytical expressions for upper and lower bounds and numerical estimation of its exact value. Physical Review A, 99 (5) 052337. doi: 10.1103/PhysRevA.99.052337
Shahandeh, Farid, Lund, Austin P. and Ralph, Timothy C. (2019). Quantum correlations and global coherence in distributed quantum computing. Physical Review A, 99 (5) 052303. doi: 10.1103/PhysRevA.99.052303
Moskalenko, Andrey S. and Ralph, Timothy C. (2019). Correlations detected in a quantum vacuum. Nature, 568 (7751), 178-179. doi: 10.1038/d41586-019-01083-z
Jeng, Hao, Tserkis, Spyros, Haw, Jing Yan, Chrzanowski, Helen M., Janousek, Jiri, Ralph, Timothy C., Lam, Ping Koy and Assad, Syed M. (2019). Entanglement properties of a measurement-based entanglement distillation experiment. Physical Review A, 99 (4) 042304. doi: 10.1103/PhysRevA.99.042304
Chen, S. Y. and Ralph, T. C. (2019). Estimation of gravitational acceleration with quantum optical interferometers. Physical Review A, 99 (2) 023803. doi: 10.1103/PhysRevA.99.023803
Su, Daiqin and Ralph, Timothy C. (2019). Decoherence of the radiation from an accelerated quantum source. Physical Review X, 9 (1) 011007. doi: 10.1103/PhysRevX.9.011007
Tserkis, Spyros, Dias, Josephine and Ralph, Timothy C. (2018). Simulation of Gaussian channels via teleportation and error correction of Gaussian states. Physical Review A, 98 (5) 052335. doi: 10.1103/PhysRevA.98.052335
Serikawa, Takahiro, Yoshikawa, Jun-Ichi, Takeda, Shuntaro, Yonezawa, Hidehiro, Ralph, Timothy C., Huntington, Elanor H. and Furusawa, Akira (2018). Generation of a cat state in an optical sideband. Physical Review Letters, 121 (14) 143602, 143602. doi: 10.1103/PhysRevLett.121.143602
Cree, Samuel S., Davis, Tamara M., Ralph, Timothy C., Wang, Qingdi, Zhu, Zhen and Unruh, William G. (2018). Can the fluctuations of the quantum vacuum solve the cosmological constant problem?. Physical Review D, 98 (6) 063506. doi: 10.1103/PhysRevD.98.063506
Qiang, Xiaogang, Zhou, Xiaoqi, Wang, Jianwei, Wilkes, Callum M., Loke, Thomas, O'Gara, Sean, Kling, Laurent, Marshall, Graham D., Santagati, Raffaele, Ralph, Timothy C., Wang, Jingbo B., O'Brien, Jeremy L., Thompson, Mark G. and Matthews, Jonathan C. F. (2018). Large-scale silicon quantum photonics implementing arbitrary two-qubit processing. Nature Photonics, 12 (9), 534-539. doi: 10.1038/s41566-018-0236-y
Onoe, Sho, Su, Daiqin and Ralph, Timothy. C. (2018). Particle production and apparent decoherence due to an accelerated time delay. Physical Review D, 98 (3) 036011. doi: 10.1103/PhysRevD.98.036011
Joshi, Siddarth Koduru, Pienaar, Jacques, Ralph, Timothy C., Cacciapuoti, Luigi, McCutcheon, Will, Rarity, John, Giggenbach, Dirk, Lim, Jin Gyu, Makarov, Vadim, Fuentes, Ivette, Scheidl, Thomas, Beckert, Erik, Bourennane, Mohamed, Bruschi, David Edward, Cabello, Adam, Capmany, Jose, Carrasco-Casado, Alberto, Diamanti, Eleni, Dusek, Miloslav, Elser, Dominique, Gulinatti, Angelo, Hadfield, Robert H., Jennewein, Thomas, Kaltenbaek, Rainer, Krainak, Michael A., Lo, Hoi-Kwong, Marquardt, Christoph, Milburn, Gerard, Peev, Momtchil ... Ursin, Rupert (2018). Space QUEST mission proposal: experimentally testing decoherence due to gravity. New Journal of Physics, 20 (6) 063016, 063016. doi: 10.1088/1367-2630/aac58b
Dias, Josephine and Ralph, T. C. (2018). Quantum error correction of continuous-variable states with realistic resources. Physical Review A, 97 (3) 032335. doi: 10.1103/PhysRevA.97.032335
Marshman, Ryan J., Lund, Austin P., Rohde, Peter P. and Ralph, Timothy C. (2018). Passive quantum error correction of linear optics networks through error averaging. Physical Review A, 97 (2) 022324, 1-15. doi: 10.1103/PhysRevA.97.022324
Thearle, Oliver, Janousek, Jiri, Armstrong, Seiji, Hosseini, Sara, Schünemann, Melanie, Assad, Syed, Symul, Thomas, James, Matthew R., Huntington, Elanor, Ralph, Timothy C. and Lam, Ping Koy (2018). Violation of Bell's inequality using continuous variable measurements. Physical Review Letters, 120 (4) 040406, 040406. doi: 10.1103/PhysRevLett.120.040406
Tserkis, Spyros and Ralph, Timothy C. (2017). Quantifying entanglement in two-mode Gaussian states. Physical Review A, 96 (6) 062338, 1-6. doi: 10.1103/PhysRevA.96.062338
Shahandeh, Farid, Ringbauer, Martin, Loredo, Juan C. and Ralph, Timothy C. (2017). Erratum: Ultrafine entanglement witnessing. Physical Review Letters, 119 (26) 269901. doi: 10.1103/physrevlett.119.269901
Zhao, Jie, Dias, Josephine, Haw, Jing Yan, Symul, Thomas, Bradshaw, Mark, Blandino, Remi, Ralph, Timothy, Assad, Syed M. and Lam, Ping Koy (2017). Quantum enhancement of signal-to-noise ratio with a heralded linear amplifier. Optica, 4 (11), 1421-1428. doi: 10.1364/OPTICA.4.001421
Kish, S. P. and Ralph, T. C. (2017). Quantum-limited measurement of space-time curvature with scaling beyond the conventional Heisenberg limit. Physical Review A, 96 (4) 041801. doi: 10.1103/PhysRevA.96.041801
Su, Daiqin, Ho, C. T. Marco, Mann, Robert B. and Ralph, Timothy C. (2017). Black hole squeezers. Physical Review D, 96 (6) 065017. doi: 10.1103/PhysRevD.96.065017
Shahandeh, Farid, Lund, Austin P. and Ralph, Timothy C. (2017). Quantum correlations in nonlocal boson sampling. Physical Review Letters, 119 (12) 120502, 120502. doi: 10.1103/PhysRevLett.119.120502
Lund, A. P., Rahimi-Keshari, S. and Ralph, T. C. (2017). Exact boson sampling using Gaussian continuous-variable measurements. Physical Review A, 96 (2) 022301. doi: 10.1103/PhysRevA.96.022301
Su, Daiqin, Ho, C. T. Marco, Mann, Robert B. and Ralph, Timothy C. (2017). Quantum circuit model for non-inertial objects: a uniformly accelerated mirror. New Journal of Physics, 19 (6) 063017, 063017. doi: 10.1088/1367-2630/aa71d1
Fink, Matthias, Rodriguez-Aramendia, Ana, Handsteiner, Johannes, Ziarkash, Abdul, Steinlechner, Fabian, Scheidl, Thomas, Fuentes, Ivette, Pienaar, Jacques, Ralph, Timothy C. and Ursin, Rupert (2017). Experimental test of photonic entanglement in accelerated reference frames. Nature Communications, 8 (1) 15304, 15304. doi: 10.1038/ncomms15304
Lund, A. P., Bremner, Michael J. and Ralph, T. C. (2017). Quantum sampling problems, BosonSampling and quantum supremacy. NPJ Quantum Information, 3 (1) 0018. doi: 10.1038/s41534-017-0018-2
Shahandeh, Farid, Hall, Michael J. W. and Ralph, Timothy C. (2017). Measurement-device-independent approach to entanglement measures. Physical Review Letters, 118 (15) 150505, 150505-1-150505-6. doi: 10.1103/PhysRevLett.118.150505
Shahandeh, Farid, Ringbauer, Martin, Loredo, Juan C. and Ralph, Timothy C. (2017). Ultrafine entanglement witnessing. Physical Review Letters, 118 (11) 110502, 110502-1-110502-5. doi: 10.1103/PhysRevLett.118.110502
Dias, Josephine and Ralph, T. C. (2017). Quantum repeaters using continuous-variable teleportation. Physical Review A, 95 (2) 022312. doi: 10.1103/PhysRevA.95.022312
Johnson, Sarah J., Lance, Andrew M., Ong, Lawrence, Shirvanimoghaddam, Mahyar, Ralph, T. C. and Symul, Thomas (2017). On the problem of non-zero word error rates for fixed-rate error correction codes in continuous variable quantum key distribution. New Journal of Physics, 19 (2) 023003, 023003. doi: 10.1088/1367-2630/aa54d7
Haw, Jing Yan, Zhao, Jie, Dias, Josephine, Assad, Syed M., Bradshaw, Mark, Blandino, Remi, Symul, Thomas, Ralph, Timothy C. and Lam, Ping Koy (2016). Surpassing the no-cloning limit with a heralded hybrid linear amplifier for coherent states. Nature Communications, 7 (1) 13222, 13222. doi: 10.1038/ncomms13222
Ho, C. T. Marco, Su, Daiqin, Mann, Robert B. and Ralph, Timothy C. (2016). Black hole field theory with a firewall in two spacetime dimensions. Physical Review D, 94 (8) 081502. doi: 10.1103/PhysRevD.94.081502
Shahandeh, F., Lund, A. P., Ralph, T. C. and Vanner, M. R. (2016). Arbitrary multi-qubit generation. New Journal of Physics, 18 (10) 103020, 103020. doi: 10.1088/1367-2630/18/10/103020
Liu, Kai, Lund, Austin Peter, Gu, Yong-Jian and Ralph, Timothy Cameron (2016). A certification scheme for the boson sampler. Journal of the Optical Society of America B, 33 (9), 1835-1841. doi: 10.1364/JOSAB.33.001835
Rahimi-Keshari, Saleh, Ralph, Timothy C. and Caves, Carlton M. (2016). Sufficient conditions for efficient classical simulation of quantum optics. Physical Review X, 6 (2) 021039, 165-171. doi: 10.1103/PhysRevX.6.021039
Walk, Nathan, Hosseini, Sara, Geng, Jiao, Thearle, Oliver, Haw, Jing Yan, Armstrong, Seiji, Assad, Syed M., Janousek, Jiri, Ralph, Timothy C., Symul, Thomas, Wiseman, Howard M. and Lam, Ping Koy (2016). Experimental demonstration of Gaussian protocols for one-sided device-independent quantum key distribution. Optica, 3 (6) 259870, 634-642. doi: 10.1364/OPTICA.3.000634
Kish, S. P. and Ralph, T. C. (2016). Estimating spacetime parameters with a quantum probe in a lossy environment. Physical Review D - Particles, Fields, Gravitation and Cosmology, 93 (10), 105013-1-105013-14. doi: 10.1103/PhysRevD.93.105013
Combes, Joshua, Walk, Nathan, Lund, A. P., Ralph, T. C. and Caves, Carlton M. (2016). Models of reduced-noise, probabilistic linear amplifiers. Physical Review A - Atomic, Molecular, and Optical Physics, 93 (5) 052310, 052310.1-052310.12. doi: 10.1103/PhysRevA.93.052310
Patel, Raj B., Ho, Joseph, Ferreyrol, Franck, Ralph, Timothy C. and Pryde, Geoff J. (2016). A quantum Fredkin gate. Science Advances, 2 (3) e1501531, e1501531. doi: 10.1126/sciadv.1501531
Su, Daiqin and Ralph, T. C. (2016). Spacetime diamonds. Physical Review D, 93 (4) 044023. doi: 10.1103/PhysRevD.93.044023
Blandino, Remi, Walk, Nathan, Lund, Austin P. and Ralph, Timothy C. (2016). Channel purification via continuous-variable quantum teleportation with Gaussian postselection. Physical Review A - Atomic, Molecular, and Optical Physics, 93 (1) 012326. doi: 10.1103/PhysRevA.93.012326
Yuan, Xiao, Assad, Syed M., Thompson, Jayne, Haw, Jing Yan, Vedral, Vlatko, Ralph, Timothy C., Lam, Ping Koy, Weedbrook, Christian and Gu, Mile (2015). Replicating the benefits of Deutschian closed timelike curves without breaking causality. npj Quantum Information, 1 (1) 15007. doi: 10.1038/npjqi.2015.7
Lee, Seung-Woo, Park, Kimin, Ralph, Timothy C. and Jeong, Hyunseok (2015). Nearly deterministic Bell measurement with multiphoton entanglement for efficient quantum-information processing. Physical Review A, 92 (5) 052324. doi: 10.1103/PhysRevA.92.052324
Ulanov, Alexander E., Fedorov, Ilya A., Pushkina, Anastasia A., Kurochkin, Yury V., Ralph, Timothy C. and Lvovsky A.I. (2015). Undoing the effect of loss on quantum entanglement. Nature Photonics, 9 (11), 764-768. doi: 10.1038/nphoton.2015.195
Costanzo, L. S., Zavatta, A., Grandi, S., Bellini, M., Jeong, H., Kang, M., Lee, S.-W. and Ralph, T. C. (2015). Properties of hybrid entanglement between discrete- and continuous-variable states of light. Physica Scripta, 90 (7) 074045, 1-7. doi: 10.1088/0031-8949/90/7/074045
Ralph, T. C. and Walk, N. (2015). Quantum key distribution without sending a quantum signal. New Journal of Physics, 17 (6) 063008, 1-13. doi: 10.1088/1367-2630/17/6/063008
Rahimi-Keshari, Saleh, Ralph, Timothy C. and Caves, Carlton M. (2015). Operational discord measure for Gaussian states with Gaussian measurements. New Journal of Physics, 17 (6) 063037, 1-12. doi: 10.1088/1367-2630/17/6/063037
Ralph, T. C., Sollner, I., Mahmoodian, S., White, A. G. and Lodahl, P. (2015). Photon sorting, efficient bell measurements, and a deterministic controlled- Z gate using a passive two-level nonlinearity. Physical Review Letters, 114 (17) 173603, 173603-1-173603-5. doi: 10.1103/PhysRevLett.114.173603
Lee, Seung-Woo, Park, Kimin, Ralph, Timothty C and Jeong, Hyunseok (2015). Nearly deterministic bell measurement for multiphoton qubits and its application to quantum information processing. Physical Review Letters, 114 (11) 113603, 113603. doi: 10.1103/PhysRevLett.114.113603
Rahimi-Keshari, Saleh, Lund, Austin P and Ralph, Timothy C (2015). What can quantum optics say about computational complexity theory?. Physical Review Letters, 114 (6) 060501, 060501. doi: 10.1103/PhysRevLett.114.060501
Jeong, Hyunseok, Noh, Changsuk, Bae, Seunglee, Angelakis, Dimitris G. and Ralph, Timothy C. (2014). Detecting the degree of macroscopic quantumness using an overlap measurement. Journal of the Optical Society of America B: Optical Physics, 31 (12), 3057-3066. doi: 10.1364/JOSAB.31.003057
Bruschi, David Edward, Datta, Animesh, Ursin, Rupert, Ralph, Timothy C. and Fuentes, Ivette (2014). Quantum estimation of the Schwarzschild spacetime parameters of the Earth. Physical Review D - Particles, Fields, Gravitation and Cosmology, 90 (12) 124001, 124001-1-124001-10. doi: 10.1103/PhysRevD.90.124001
Bernu, J., Armstrong, S., Symul, T., Ralph, T. C. and Lam, P. K. (2014). Theoretical analysis of an ideal noiseless linear amplifier for Einstein-Podolsky-Rosen entanglement distillation. Journal of Physics B: Atomic, Molecular and Optical Physics, 47 (21) 215503, 1-10. doi: 10.1088/0953-4075/47/21/215503
Costanzo, Luca S., Zavatta, Alessandro, Grandi, Samuele, Bellini, Marco, Jeong, Hyunseok, Kang, Minsu, Lee, Seung-Woo and Ralph, Timothy C. (2014). Experimental hybrid entanglement between quantum and classical states of light. International Journal of Quantum Information, 12 (7-8), 1560015-1-1560015-11. doi: 10.1142/S0219749915600151
Su, Daiqin and Ralph, T. C. (2014). Quantum communication in the presence of a horizon. Physical Review D - Particles, Fields, Gravitation and Cosmology, 90 (8) 084022, 084022-1-084022-8. doi: 10.1103/PhysRevD.90.084022
Lund, A. P., Laing, A., Rahimi-Keshari, S., Rudolph, T., O'Brien, J. L. and Ralph, T. C. (2014). Boson sampling from a Gaussian State. Physical Review Letters, 113 (10) 100502, 100502.1-100502.5. doi: 10.1103/PhysRevLett.113.100502
Campbell, G. T., Pinel, O., Hosseini, M., Ralph, T. C., Buchler, B. C. and Lam, P. K. (2014). Configurable unitary transformations and linear logic gates using quantum memories. Physical Review Letters, 113 (6) 063601, 063601. doi: 10.1103/PhysRevLett.113.063601
Bruschi, David Edward, Ralph, Timothy C., Fuentes, Ivette, Jennewein, Thomas and Razavi, Mohsen (2014). Spacetime effects on satellite-based quantum communications. Physical Review D, 90 (4) 045041, 045041.1-045041.13. doi: 10.1103/PhysRevD.90.045041
Ringbauer, Martin, Broome, Matthew A., Myers, Casey R., White, Andrew G. and Ralph, Timothy C. (2014). Experimental simulation of closed timelike curves. Nature Communications, 5 (1) 4145, 4145. doi: 10.1038/ncomms5145
Almeida, M. P., Gu, Mile, Fedrizzi, Alessandro, Broome, Matthew A., Ralph, Timothy C. and White, Andrew G. (2014). Entanglement-free certification of entangling gates. Physical Review A, 89 (4) 042323, 042323.1-042323.5. doi: 10.1103/PhysRevA.89.042323
Chrzanowski, Helen M., Walk, Nathan, Assad, Syed M., Janousek, Jiri, Hosseini, Sara, Ralph, Timothy C., Symul, Thomas and Lam, Ping Koy (2014). Measurement-based noiseless linear amplification for quantum communication. Nature Photonics, 8 (4), 333-338. doi: 10.1038/nphoton.2014.49
McMahon, N. A., Lund, A. P. and Ralph, T. C. (2014). Optimal architecture for a nondeterministic noiseless linear amplifier. Physical Review A, 89 (2) 023846. doi: 10.1103/PhysRevA.89.023846
Hosseini, S., Rahimi-Keshari, S., Haw, J. Y., Assad, S. M., Chrzanowski, H. M., Janousek, J., Symul, T., Ralph, T. C. and Lam, P. K. (2014). Experimental verification of quantum discord in continuous-variable states. Journal of Physics B: Atomic, Molecular and Optical Physics, 47 (2) 025503, 025503. doi: 10.1088/0953-4075/47/2/025503
Jeong, Hyunseok, Zavatta, Alessandro, Kang, Minsu, Lee, Seung-Woo, Costanzo, Lucas S., Grandi, Samuele, Ralph, Timothy C. and Bellini, Marco (2014). Generation of hybrid entanglement of light. Nature Photonics, 8 (7), 564-569. doi: 10.1038/nphoton.2014.136
Ralph, T. C. and Pienaar, J. (2014). Entanglement decoherence in a gravitational well according to the event formalism. New Journal of Physics, 16 (8) 085008, 1-12. doi: 10.1088/1367-2630/16/8/085008
Lund, A. P., Ralph, T. C. and Jeong, H. (2013). Generation of distributed entangled coherent states over a lossy environment with inefficient detectors. Physical Review A, 88 (5) 052335. doi: 10.1103/PhysRevA.88.052335
Ralph, Timothy C. (2013). Quantum communication: reliable teleportation. Nature, 500 (7462), 282-283. doi: 10.1038/500282a
Andersen, Ulrik L. and Ralph, Timothy C. (2013). High-fidelity teleportation of continuous-variable quantum states using delocalized single photons. Physical Review Letters, 111 (5) 050504, 050504.1-050504.5. doi: 10.1103/PhysRevLett.111.050504
Ahn, D., Myers, C. R., Ralph, T. C. and Mann, R. B. (2013). Quantum-state cloning in the presence of a closed timelike curve. Physical Review A, 88 (2) 022332, 022332.1-022332.5. doi: 10.1103/PhysRevA.88.022332
Walk, Nathan, Lund, Austin P. and Ralph, Timothy C. (2013). Nondeterministic noiseless amplification via non-symplectic phase space transformations. New Journal of Physics, 15 (7) 073014, 073014.1-073014.23. doi: 10.1088/1367-2630/15/7/073014
Ralph, T. C. (2013). Quantum computation: boson sampling on a chip. Nature Photonics, 7 (7), 514-515. doi: 10.1038/nphoton.2013.175
Rahimi-Keshari, Saleh, Broome, Matthew A., Fickler, Robert, Fedrizzi, Alessandro, Ralph, Timothy C. and White, Andrew G. (2013). Direct characterization of linear-optical networks. Optics Express, 21 (11), 13450-13458. doi: 10.1364/OE.21.013450
Chrzanowski, H. M., Assad, S. M., Bernu, J., Hage, B., Lund, A. P., Ralph, T. C., Lam, P. K. and Symul, T. (2013). Reconstruction of photon number conditioned states using phase randomized homodyne measurements. Journal of Physics B: Atomic, Molecular, and Optical Physics, 46 (10) 104009, 104009.1-104009.10. doi: 10.1088/0953-4075/46/10/104009
Lam, P. K. and Ralph, T. C. (2013). Quantum cryptography: continuous improvement. Nature Photonics, 7 (5), 350-352. doi: 10.1038/nphoton.2013.104
Zhou, Xiao-Qi, Kalasuwan, Pruet, Ralph, Timothy C. and O'Brien, Jeremy L. (2013). Calculating unknown eigenvalues with a quantum algorithm. Nature Photonics, 7 (3), 223-228. doi: 10.1038/NPHOTON.2012.360
Walk, Nathan, Ralph, Timothy C., Symul, Thomas and Lam, Ping Koy (2013). Security of continuous-variable quantum cryptography with Gaussian postselection. Physical Review A, 87 (2) 020303. doi: 10.1103/PhysRevA.87.020303
Broome, Matthew A., Fedrizzi, Alessandro, Rahimi-Keshari, Saleh, Dove, Justin, Aaronson, Scott, Ralph, Timothy C. and White, Andrew G. (2013). Photonic boson sampling in a tunable circuit. Science, 339 (6121), 794-798. doi: 10.1126/science.1231440
Pienaar, J. L., Ralph, T. C. and Myers, C. R. (2013). Open timelike curves violate Heisenberg's uncertainty principle. Physical Review Letters, 110 (6) 060501, 060501.1-060501.5. doi: 10.1103/PhysRevLett.110.060501
Rahimi-Keshari, Saleh, Caves, Carlton M. and Ralph, Timothy C. (2013). Measurement-based method for verifying quantum discord. Physical Review A, 87 (1) 012119, 012119.1-012119.5. doi: 10.1103/PhysRevA.87.012119
Kocsis, S., Xiang, G. Y., Ralph, T. C. and Pryde, G. J. (2013). Heralded noiseless amplification of a photon polarization qubit. Nature Physics, 9 (1), 23-28. doi: 10.1038/NPHYS2469
Downes, T. G., Ralph, T. C. and Walk, N. (2013). Quantum communication with an accelerated partner. Physical Review A, 87 (1) 012327, 012327.1-012327.7. doi: 10.1103/PhysRevA.87.012327
Zych, Magdalena, Costa, Fabio, Pikovski, Igor, Ralph, Timothy C. and Brukner, Caslav (2012). General relativistic effects in quantum interference of photons. Classical and Quantum Gravity, 29 (22) 224010, 224010-1-224010-18. doi: 10.1088/0264-9381/29/22/224010
Mann, R. B. and Ralph, T. C. (2012). Relativistic quantum information. Classical and Quantum Gravity, 29 (22), 220301. doi: 10.1088/0264-9381/29/22/220301
Yonezawa, Hidehiro, Nakane, Daisuke, Wheatley, Trevor A., Iwasawa, Kohjiro, Takeda, Shuntaro, Arao, Hajime, Ohki, Kentaro, Tsumura, Koji, Berry, Dominic W., Ralph, Timothy C., Wiseman, Howard M., Huntington, Elanor H. and Furusawa, Akira (2012). Quantum-enhanced optical-phase tracking. Science, 337 (6101), 1514-1517. doi: 10.1126/science.1225258
Gu, Mile, Chrzanowski, Helen M., Assad, Syed M., Symul, Thomas, Modi, Kavan, Ralph, Timothy C., Vedral, Vlatko and Lam, Ping Koy (2012). Observing the operational significance of discord consumption. Nature Physics, 8 (9), 671-675. doi: 10.1038/NPHYS2376
Weedbrook, Christian, Pirandola, Stefano and Ralph, Timothy C. (2012). Continuous-variable quantum key distribution using thermal states. Physical Review A, 86 (2) 022318, 022318.1-022318.12. doi: 10.1103/PhysRevA.86.022318
Rohde, Peter P., Fedrizzi, Alessandro and Ralph, Timothy C. (2012). Entanglement dynamics and quasi-periodicity in discrete quantum walks. Journal of Modern Optics, 59 (8), 710-720. doi: 10.1080/09500340.2012.660204
Weedbrook, Christian, Pirandola, Stefano, Garcia-Patron, Raul, Cerf, Nicolas J., Ralph, Timothy C., Shapiro, Jeffrey H. and Lloyd, Seth (2012). Gaussian quantum information. Reviews of Modern Physics, 84 (2), 621-669. doi: 10.1103/RevModPhys.84.621
Rohde, Peter P. and Ralph, Timothy C. (2012). Error tolerance of the boson-sampling model for linear optics quantum computing. Physical Review A, 85 (2) 022332, 022332.1-022332.5. doi: 10.1103/PhysRevA.85.022332
Olson, S. Jay and Ralph, Timothy C. (2012). Extraction of timelike entanglement from the quantum vacuum. Physical Review A, 85 (1) 012306, 012306-1-012306-7. doi: 10.1103/PhysRevA.85.012306
Ralph, Timothy C. and Downes, Tony G. (2012). Relativistic quantum information and time machines. Contemporary Physics, 53 (1), 1-16. doi: 10.1080/00107514.2011.640146
Pienaar, J.L., Myers, C.R. and Ralph, T.C. (2011). Quantum fields on closed timelike curves. Physical Review A: Atomic, molecular and optical physics, 84 (6) 062316, 062316. doi: 10.1103/PhysRevA.84.062316
Chrzanowski, H. M., Bernu, J., Sparkes, B. M., Hage, B., Lund, A. P., Ralph, T. C., Lam, P. K. and Symul, T. (2011). Photon-number discrimination without a photon counter and its application to reconstructing non-Gaussian states. Physical Review A (Atomic, Molecular and Optical Physics), 84 (5) 050302, 050302.1-050302.4. doi: 10.1103/PhysRevA.84.050302
Myers, C. R. and Ralph, T. C. (2011). Coherent state topological cluster state production. New Journal of Physics, 13 (11) 115015, 1-24. doi: 10.1088/1367-2630/13/11/115015
Ralph, T.C. and Myers, C.R. (2011). Reply to "Comment on 'Information flow of quantum states interacting with closed timelike curves". Physical Review A, 84 (5) 056302, 056302-1-056302-2. doi: 10.1103/PhysRevA.84.056302
Pienaar, J. L., Myers, C. R. and Ralph, T. C. (2011). Space-time qubits. Physical Review A, 84 (2) 022315. doi: 10.1103/PhysRevA.84.022315
Zhou, Xiao-Qi, Ralph, Timothy C., Kalasuwan, Pruet, Zhang, Mian, Peruzzo, Alberto, Lanyon, Benjamin P. and O'Brien, Jeremy L. (2011). Adding control to arbitrary unknown quantum operations. Nature Communications, 2 (1 Article # 413) 413. doi: 10.1038/ncomms1392
Ralph, T. C. (2011). Quantum error correction of continuous-variable states against Gaussian noise. Physical Review A, 84 (2) 022339, 022339-1-022339-4. doi: 10.1103/PhysRevA.84.022339
Rohde, Peter P. and Ralph, Timothy C. (2011). Time-resolved detection and mode mismatch in a linear optics quantum gate. New Journal of Physics, 13 (5) 053036, 053036. doi: 10.1088/1367-2630/13/5/053036
Downes, T. G., Fuentes, I. and Ralph, T. C. (2011). Entangling moving cavities in noninertial frames. Physical Review Letters, 106 (21) 210502, 210502.1-210502.4. doi: 10.1103/PhysRevLett.106.210502
Olson, S. Jay and Ralph, Timothy C. (2011). Entanglement between the future and the past in the quantum vacuum. Physical Review Letters, 106 (11) 110404, 110404.1-110404.4. doi: 10.1103/PhysRevLett.106.110404
Branczyk, Agata M., Fedrizzi, Alessandro, Stace, Thomas M., Ralph, Tim C. and White, Andrew G. (2011). Engineered optical nonlinearity for a quantum light source. Optics Express, 19 (1), 55-65. doi: 10.1364/OE.19.000055
Ralph, T. C. and Myers, C. R. (2010). Information flow of quantum states interacting with closed timelike curves. Physical Review A - Atomic, Molecular, and Optical Physics, 82 (6) 062330, 062330-1-062330-5. doi: 10.1103/PhysRevA.82.062330
Laing, A, Peruzzo, A, Politi, A, Verde, MR, Halder, M, Ralph, TC, Thompson, MG and O'Brien, JL (2010). High-fidelity operation of quantum photonic circuits. Applied Physics Letters, 97 (21) 211109, 211109-1-211109-3. doi: 10.1063/1.3497087
Weedbrook, Christian, Pirandola, Stefano, Lloyd, Seth and Ralph, Timothy C. (2010). Quantum cryptography approaching the classical limit. Physical Review Letters, 105 (11) 110501, 1-4. doi: 10.1103/PhysRevLett.105.110501
Hayes, A. J. F., Haselgrove, H. L., Gilchrist, Alexei and Ralph, T. C. (2010). Fault tolerance in parity-state linear optical quantum computing. Physical Review A, 82 (2) 022323, 022323-1-022323-9. doi: 10.1103/PhysRevA.82.022323
Menicucci, NC, Ma, XA and Ralph, TC (2010). Arbitrarily large continuous-variable cluster states from a single quantum nondemolition gate. Physical Review Letters, 104 (25) 250503, 250503-1-250503-4. doi: 10.1103/PhysRevLett.104.250503
Brańczyk, Agata M., Ralph, T. C., Helwig, Wolfram and Silberhorn, Christine (2010). Optimized generation of heralded Fock states using parametric down-conversion. New Journal of Physics, 12 (6) 063001, 063001-1-063001-29. doi: 10.1088/1367-2630/12/6/063001
Gong, Yan-Xiao, Zou, Xu-Bo, Ralph, Timothy C., Zhu, Shi-Ning and Guo, Guang-Can (2010). Linear optical quantum computation with imperfect entangled photon-pair sources and inefficient non-photon-number-resolving detectors. Physical Review A, 81 (5) 052303, 052303-1-052303-4. doi: 10.1103/PhysRevA.81.052303
Xiang, G. Y., Ralph, T. C., Lund, A. P., Walk, N. and Pryde, G. J. (2010). Heralded noiseless linear amplification and distillation of entanglement. Nature Photonics, 4 (5), 316-319. doi: 10.1038/NPHOTON.2010.35
Wheatley, T. A., Berry, D. W., Yonezawa, H., Nakane, D., Arao, H., Pope, D. T., Ralph, T. C., Wiseman, H. M., Furusawa, A. and Huntington, E. H. (2010). Adaptive optical phase estimation using time-symmetric quantum smoothing. Physical Review Letters, 104 (9) 093601, 093601-1-093601-4. doi: 10.1103/PhysRevLett.104.093601
Heurs, M., Webb, J. G., Dunlop, A. E., Harb, C.C., Ralph, T. C. and Huntington, E. H. (2010). Multiplexed communication over a high-speed quantum channel. Physical Review A - Atomic, Molecular, and Optical Physics, 81 (3) 032325, 032325 -1-032325- 4. doi: 10.1103/PhysRevA.81.032325
Berry, Dominic W., Jeong, Hyunseok, Stobinska, Magdalena and Ralph, Timothy C. (2010). Fair-sampling assumption is not necessary for testing local realism. Physical Review A, 81 (1) 012109, 012109-1-012109-11. doi: 10.1103/PhysRevA.81.012109
Ralph, Tim C. and Pryde, Geoff J. (2010). Optical Quantum Computation. Progress in Optics, 54 (C), 209-269. doi: 10.1016/S0079-6638(10)05409-0
Ralph, Timothy C. and Lam, Ping K. (2009). A bright future for quantum communications. Nature Photonics, 3 (12), 671-673. doi: 10.1038/nphoton.2009.222
Kumar, Prem, Kwiat, Paul G., Ralph, Tim and Sasaki, Masahide (2009). Editorial introduction to the special issue on quantum communications and information science. IEEE Journal of Selected Topics in Quantum Electronics, 15 (6) 5340090, 1545-1546. doi: 10.1109/JSTQE.2009.2035480
Lund, A. P. and Ralph, T. C. (2009). Continuous-variable entanglement distillation over a general lossy channel. Physical Review A - Atomic, Molecular, and Optical Physics, 80 (3) 032309, 032309-1-032309-9. doi: 10.1103/PhysRevA.80.032309
Gu, Mile, Weedbrook, Christian, Menicucci, Nicholas C., Ralph, Timothy C. and van Loock, Peter (2009). Quantum computing with continuous-variable clusters. Physical Review A (Atomic, Molecular and Optical Physics), 79 (6) 062318, 062318.1-062318.16. doi: 10.1103/PhysRevA.79.062318
Weedbrook, Christian, Alton, Daniel J., Symul, Thomas, Lam, Ping Kom and Ralph, Timothy C. (2009). Distinguishability of Gaussian states in quantum cryptography using postselection. Physical Review A (Atomic, Molecular and Optical Physics), 79 (6) 062311, 062311.1-062311.11. doi: 10.1103/PhysRevA.79.062311
Leung, Patrick M., Munro, William J., Nemoto, Kae and Ralph, Timothy C. (2009). Spectral effects of strong X(2) nonlinearity for quantum processing. Physical Review A, 79 (4) 042307, 042307-1-042307-8. doi: 10.1103/PhysRevA.79.042307
Ralph, T. C., Milburn, G. J. and Downes, T. (2009). Quantum connectivity of space-time and gravitationally induced decorrelation of entanglement. Physical Review A, 79 (2) 022121, 022121-1-022121-8. doi: 10.1103/PhysRevA.79.022121
Jeong, Hyunseok, Paternostro, Mauro and Ralph, Timothy C. (2009). Failure of local realism revealed by extremely-coarse-grained measurements. Physical Review Letters, 102 (6) 060403, 060403.1-060403.4. doi: 10.1103/PhysRevLett.102.060403
Lanyon, Benjamin P., Barbieri, Marco, Almeida, Marcelo P., Jennewein, Thomas, Ralph, Timothy C., Resch, Kevin J., Pryde, Geoff J., O'Brien, Jeremy L., Gilchrist, Alexei and White, Andrew G. (2009). Simplifying quantum logic using higher-dimensional Hilbert spaces. Nature Physics, 5 (2), 134-140. doi: 10.1038/NPHYS1150
Paternostro, M., Jeong, H. and Ralph, T. C. (2009). Violations of Bell's inequality for Gaussian states with homodyne detection and nonlinear interactions. Physical Review A, 79 (1) 012101, 012101-1-012101-7. doi: 10.1103/PhysRevA.79.012101
Lundeen, J. S., Feito, A., Coldenstrodt-Ronge, H., Pregnell, K. L., Silberhorn, C., Ralph, T. C., Eisert, J., Plenio, M. B. and Walmsley, I. A. (2009). Tomography of quantum detectors. Nature Physics, 5 (1), 27-30. doi: 10.1038/NPHYS1133
Ursin, R., Jennewein, T., Kofler, J., Perdigues, J. M., Cacciapuoti, L., de Matos, C. J., Aspelmeyer, M., Valencia, A., Scheidl, T., Acin, A., Barbieri, C., Bianco, G., Brukner, C., Capmany, J., Cova, S., Giggenbach, D., Leeb, W., Hadfield, R. H., Laflamme, R., Lutkenhaus, N., Milburn, G., Peev, M., Ralph, T., Rarity, J., Renner, R., Samain, E., Solomos, N., Tittel, W., Torres, J. P. ... Zeilinger, A. (2009). Space-quest: experiments with quantum entanglement in space. Europhysics News, 40 (3), 26-29. doi: 10.1051/epn/2009503
Branczyk, Agata M. and Ralph, T. C. (2008). Teleportation using squeezed single photons. Physical Review A, 78 (5) 052304, 052304-1-052304-8. doi: 10.1103/PhysRevA.78.052304
Gong, Y.-X., Hayes, A.J.F., Guo, G.-C. and Ralph, T.C. (2008). Proposal for optical parity state re-encoder. Journal of Modern Optics, 55 (15), 2415-2428. doi: 10.1080/09500340802130720
Lund, A., Ralph, T.C. and van Loock, P. (2008). Entangled non-Gaussian states formed by mixing Gaussian states. Journal of Modern Optics, 55 (13), 2083-2094. doi: 10.1080/09500340801986932
Gong, Yan-Xiao, Guo, Guang-Can and Ralph, Timothy C. (2008). Methods for a linear optical quantum Fredkin gate. Physical Review A (Atomic, Molecular and Optical Physics), 78 (1) 012305, 012305-1-012305-5. doi: 10.1103/PhysRevA.78.012305
Ralph, T. C., Huntington, E. H. and Symul, T. (2008). Single-photon side bands. Physical Review A, 77 (6) 063817. doi: 10.1103/PhysRevA.77.063817
Weedbrook, Christian, Grosse, Nicolai B., Symul, Thomas, Lam, Ping Koy and Ralph, Timothy C. (2008). Quantum cloning of continuous-variable entangled states. Physical Review A, 77 (5) 052313. doi: 10.1103/PhysRevA.77.052313
Lund, A. P., Ralph, T. C. and Haselgrove, H. L. (2008). Fault-Tolerant Linear Optical Quantum Computing with Small-Amplitude Coherent States. Physical Review Letters, 100 (3) 030503, 030503-1-030503-4. doi: 10.1103/PhysRevLett.100.030503
Hayes, A. J. F., Gilchrist, A. and Ralph, T. C. (2008). Loss-tolerant operations in parity-code linear optics quantum computing. Physical Review A, 77 (1) 012310, 012310-1-012310-8. doi: 10.1103/PhysRevA.77.012310
Rohde, Peter P., Munro, William J., Ralph, Timothy C., van Loock, Peter and Nemoto, Kae (2008). Practical effects in the preparation of cluster states using weak non-linearities. Quantum Information & Computation, 8 (1 & 2), 0053-0067.
Ralph, T. C. and Boyd, R. W. (2007). Better Computing with Photons. Science, 318 (5854), 1251-1252. doi: 10.1126/science.1150968
Jeong, Hyunseok and Ralph, Timothy C. (2007). Quantum superpositions and entanglement of thermal states at high temperatures and their applications to quantum-information processing. Physical Review A, 76 (4) 042103, 042103.1-042103.11. doi: 10.1103/PhysRevA.76.042103
Symul, Thomas, Alton, Daniel J., Assas, Syed M., Lance, Andrew M., Weedbrook, Christian, Ralph, Timothy C. and Lam, Ping Koy (2007). Experimental demonstration of post-selected-based continuous-variable quantum key distribution in the presence of Gaussian noise. Physical Review A: Atomic, Molecular and Optical Physics, 76 (3) 030303, 030303.1-030303.4. doi: 10.1103/PhysRevA.76.030303
Ralph, T. C. (2007). Unitary solution to a quantum gravity information paradox. Physical Review A, 76 (1) 012336, 012336-1-012336-5. doi: 10.1103/PhysRevA.76.012336
Rohde, Peter P., Webb, James G., Huntington, Elanor H. and Ralph, Timothy C. (2007). Photon number projection using non-number-resolving detectors. New Journal of Physics, 9 (233) 233, 010233-1-010233-18. doi: 10.1088/1367-2630/9/7/233
Leung, P. M. and Ralph, T. C. (2007). Optical zeno gate: Bounds for fault tolerant operation. New Journal of Physics, 9 (7) 224, 010224-1-010224-10. doi: 10.1088/1367-2630/9/7/224
Gilchrist, Alexei, Hayes, A. J. F. and Ralph, T. C. (2007). Efficient parity-encoded optical quantum computing. Physical Review A, 75 (052328) 052328, 052328-1-052328-5. doi: 10.1103/PhysRevA.75.052328
Senior, R. J., Milford, G. N., Janousek, J., Dulop, A. E., Wagner, K., Bachor, H. -A., Ralph, Timothy C., Huntington, E. H. and Harb, C. C. (2007). Observation of a comb of optical squeezing over many gigahertz of bandwidth. Optics Express, 15 (9), 5310-5317. doi: 10.1364/OE.15.005310
Grosse, N. B., Symul, T., Stobinska, M., Ralph, T. C. and Lam, P. K. (2007). Measuring Photon Antibunching from Continuous Variable Sideband Squeezing. Physical Review Letters, 98 (15) 153603, 153603-1-153603-4. doi: 10.1103/PhysRevLett.98.153603
Ralph, T. C., Resch, K. J. and Gilchrist, A. (2007). Efficient Toffoli gates using qudits. Physical Review A, 75 (2) 022313, 022313-1-022313-5. doi: 10.1103/PhysRevA.75.022313
Jeong, Hyunseok, Ralph, Timothy C. and Bowen, Warwick P. (2007). Quantum and classical fidelities for Gaussian states. Journal of The Optical Society of America B - Optical Physics, 24 (2), 355-362. doi: 10.1364/JOSAB.24.000355
Kok, Pieter, Munro, W. J., Nemoto, K.ae, Ralph, T. C.,, Dowling, Jonathon P. and Milburn, G. J. (2007). Linear optical quantum computing with photonic qubits. Reviews of Modern Physics, 79 (1), 135-174. doi: 10.1103/RevModPhys.79.135
Huntington, E. H., Harb, C. C., Heurs, M. and Ralph, T. C. (2007). Quantum noise limits to simultaneous quadrature amplitude and phase stabilization of solid-state lasers. Physical Review A, 75 (1) 013802, 013802-1-013802-8. doi: 10.1103/PhysRevA.75.013802
Rohde, Peter P., Ralph, Timothy C. and Munro, William J. (2007). Error tolerance and tradeoffs in loss- and failure-tolerant quantum computing schemes. Physical Review A, 75 (1) 010302, 010302-1-010302-4. doi: 10.1103/PhysRevA.75.010302
Stobinska, Magdalena, Jeong, Hyunseok and Ralph, Timothy C. (2007). Violation of Bell's inequality using classical measurements and nonlinear local operations. Physical Review A, 75 (5) 052105, 052105-1-052105-5. doi: 10.1103/PhysRevA.75.052105
Menicucci, Nicolas C., van Loock,, Peter, Gu, Mile, Weedbrook, Christian, Ralph, Timothy C. and Nielsen, Michael A. (2006). Universal quantum computation with continuous-variable cluster states. Physical Review Letters, 97 (11) 110501, 110501-1-110501-4. doi: 10.1103/PhysRevLett.97.110501
Leung, Patrick M. and Ralph, Timothy C. (2006). Quantum memory scheme based on optical fibers and cavities. Physical Review A, 74 (2) 022311, 022311-1-022311-6. doi: 10.1103/PhysRevA.74.022311
Rohde, P. P. and Ralph, T. C. (2006). Modelling photo-detectors in quantum optics. Journal Of Modern Optics, 53 (11), 1589-1603. doi: 10.1080/09500340600578369
Ralph, T. C., Bartlett, S. D., O'Brien, J. L., Pryde, G. J. and Wiseman, H. M. (2006). Quantum nondemolition measurements for quantum information (vol 73, 012113, 2006). Physical Review a, 73 (3). doi: 10.1103/PhysRevA.73.039902
Weedbrook, Christian, Lance, Andrew M., Bowen, Warwick P., Symul, Thomas, Ralph, Timothy C. and Lam, Ping Koy (2006). Coherent-state quantum key distribution without random basis switching. Physical Review A, 73 (2) 022316, 022316-1-022316-7. doi: 10.1103/PhysRevA.72.022316
Webb, J. G., Ralph, T. C. and Huntington, E. H. (2006). Homodyne measurement of the average photon number. Physical Review A, 73 (3) 033808, 033808-1-033808-7. doi: 10.1103/PhysRevA.73.033808
Rohde, Peter P., Ralph, Timothy C. and Munro, William J. (2006). Practical limitations in optical entanglement purification. Physical Review A, 73 (3) 030301, 030301-1-030301-4. doi: 10.1103/PhysRevA.73.030301
Jeong, H. and Ralph, T. C. (2006). Transfer of nonclassical properties from a microscopic superposition to macroscopic thermal states in the high temperature limit. Physical Review Letters, 97 (10) 100401, 100401-1-100401-4. doi: 10.1103/PhysRevLett.97.100401
Ralph, Timothy C. and Rohde, Peter P. (2006). Error models for mode mismatch in linear optics quantum computing. Physical Review A, 73 (6) 062312, 062312-1-062312-6. doi: 10.1103/PhysRevA.73.062312
Jeong, Hyunseok, Lance, Andrew M., Grosse, Nicolai B., Symul, Thomas, Lam, Ping Koy and Ralph, Timothy C. (2006). Conditional quantum-state engineering using ancillary squeezed-vacuum states. Physical Review A, 74 (3) 033813, 033813-1-033813-10. doi: 10.1103/PhysRevA.74.033813
Ralph, T. C., Bartlett, S. D., O'Brien, J. L., Pryde, G. J. and Wiseman, H. M. (2006). Quantum nondemolition measurements for quantum information. Physical Review A, 73 (1) 012113, 012113.1-012113.11. doi: 10.1103/PhysRevA.73.012113
Lance, Andrew M., Jeong, Hyunseok, Grosse, Nicolai B., Symul, Thomas, Ralph, Timothy C. and Lam, Ping Koy (2006). Quantum-state engineering with continuous-variable postselection. Physical Review A, 73 (4) 041801, 041801-1-041801-4. doi: 10.1103/PhysRevA.73.041801
Dunlop, A. E., Huntington, E. H., Harb, C. C. and Ralph, T. C. (2006). Generation of a frequency comb of squeezing in an optical parametric oscillator. Physical Review A, 73 (1) 013817, 013817-1-013817-7. doi: 10.1103/PhysRevA.73.013817
Ralph, T. C. (2006). Quantum optical systems for the implementation of quantum information processing. Reports On Progress In Physics, 69 (4), 853-898. doi: 10.1088/0034-4885/69/4/R01
Leung, Patrick M. and Ralph, Timothy C. (2006). Improving the fidelity of optical Zeno gates via distillation. Physical Review A, 74 (6) 062325, 062325-1-062325-6. doi: 10.1103/PhysRevA.74.062325
Rohde, P., Pryde, G. J., O'Brien, J. L. and Ralph, T. C. (2005). Quantum-gate characterization in an extended Hilbert space. Physical Review A, 72 (3) 032306, 0323061-0323065. doi: 10.1103/PhysRevA.72.032306
Ralph, T. C., Hayes, A. J. F. and Gilchrist, Alexei (2005). Loss-tolerant optical qubits. Physical Review Letters, 95 (10) 100501, 100501-100504. doi: 10.1103/PhysRevLett.95.100501
Rohde, Peter P., Pryde, G. J., O'Brien, J. L. and Ralph, Timothy C. (2005). Quantum-gate characterization in an extended Hilbert space (vol 72, pg 032306, 2005). Physical Review A, 72 (3). doi: 10.1103/PhysRevA.72.039906
Pryde, G. J., O'Brien, J. L., White, A. G., Ralph, T. C. and Wiseman, H. M. (2005). Publisher’s Note: Measurement of Quantum Weak Values of Photon Polarization [Phys. Rev. Lett. 94, 220405 (2005)]. Physical Review Letters, 94 (23) 239904. doi: 10.1103/PhysRevLett.94.239904
Ralph, T. C., Lund, A. P. and Wiseman, H. M. (2005). Adaptive phase measurements in linear optical quantum computation. Journal of Optics B-quantum And Semiclassical Optics, 7 (10), S245-S249. doi: 10.1088/1464-4266/7/10/007
Pryde, G. J., O'Brien, J. L., White, A. G., Bartlett, S. D. and Ralph, T. C. (2005). Pryde et al. Reply. Physical Review Letters, 95 (4), 0489021-0489021. doi: 10.1103/PhysRevLett.95.048902
Rohde, Peter P., Ralph, Timothy C. and Nielsen, Michael A. (2005). Optimal photons for quantum-information processing. Physical Review A, 72 (5) 052332, 052332-1-052332-6. doi: 10.1103/PhysRevA.72.052332
Pryde, G. J., O'Brien, J. L., White, A. G., Ralph, T. C. and Wiseman, H. M. (2005). Measurement of quantum weak values of photon polarization. Physical Review Letters, 94 (22) 220405, 220405-1-220405-4. doi: 10.1103/PhysRevLett.94.220405
Huntington, E. H., Milford, G. N., Robilliard, C. and Ralph, T. C. (2005). Coherent analysis of quantum optical sideband modes. Optics Letters, 30 (18), 2481-2483. doi: 10.1364/OL.30.002481
O'Brien, J.L., Pryde, G.J., White, A.G. and Ralph, T.C. (2005). High-fidelity Z-measurement error encoding of optical qubits. Physical Review A, 71 (6) 060303, 060303-1-060303-4. doi: 10.1103/PhysRevA.71.060303
Kok, P., Ralph, T. C. and Milburn, G. J. (2005). Communicating continuous quantum variables between different Lorentz frames. Quantum Information & Computation, 5 (3), 239-246.
Lance, A. M., Symul, T., Bowen, W. P., Sanders, B. C., Tyc, T., Ralph, T. C. and Lam, P. K. (2005). Continuous-variable quantum-state sharing via quantum disentanglement. Physical Review A, 71 (3) 033814, 1-11. doi: 10.1103/PhysRevA.71.033814
Huntington, EH, Ralph, TC, Harb, CC and Schumaker, BL (2005). Quadrature-phase noise penalties of optically and electro-optically phase-locked lasers. Optics Communications, 250 (1-3), 178-190. doi: 10.1016/j.optcom.2005.02.023
Lance, Andrew M., Symul, Thomas, Sharma, Vikram, Weedbrook, Christian, Ralph, Timothy C. and Lam, Ping Koy (2005). No-switching quantum key distribution using broadband modulated coherent light. Physical Review Letters, 95 (18) 180503, 180503-1-180503-4. doi: 10.1103/PhysRevLett.95.180503
Rohde, Peter P. and Ralph, Timothy C. (2005). Frequency and temporal effects in linear optical quantum computing. Physical Review A, 71 (3) 032320, 032320-1-032320-10. doi: 10.1103/PhysRevA.71.032320
Huntington, E. H., Milford, G. N., Robilliard, C., Ralph, T. C., Glockl, O., Andersen, U. L., Lorenz, S. and Leuchs, G. (2005). Demonstration of the spatial separation of the entangled quantum sidebands of an optical field. Physical Review A, 71 (4) 041802, 041802-1-041802-4. doi: 10.1103/PhysRevA.71.041802
Jeong, H., Lund, A. P. and Ralph, T. C. (2005). Production of superpositions of coherent states in traveling optical fields with inefficient photon detection. Physical Review A, 72 (1) 013801, 013801-1-013801-12. doi: 10.1103/PhysRevA.72.013801
Lund, A. P. and Ralph, T. C. (2005). Coherent-state linear optical quantum computing gates using simplified diagonal superposition resource states. Physical Review A, 71 (3) 032305, 032305-1-032305-9. doi: 10.1103/PhysRevA.71.032305
Hayes, A. J. F., Gilchrist, A., Myers, C. R. and Ralph, T. C. (2004). Utilizing encoding in scalable linear optics quantum computing. Journal of Optics B-quantum And Semiclassical Optics, 6 (12), 533-541. doi: 10.1088/1464-4266/6/12/008
Pryde, G.J., O'Brien, J.L., White, A.G., Bartlett, S.D. and Ralph, T.C. (2004). Measuring a photonic qubit without destroying it. Physical Review Letters, 92 (19) 193002, 190402-1-190402-4. doi: 10.1103/PhysRevLett.92.190402
Huntington, E. H. and Ralph, T. C. (2004). Components of optical qubits encoded in sideband modes. Physical Review A, 69 (4) 042318, 042318-1-042318-5. doi: 10.1103/PhysRevA.69.042318
Bowen, W. P., Schnabel, R., Lam, P. K. and Ralph, T. C. (2004). Experimental characterization of continuous-variable entanglement. Physical Review A - Atomic, Molecular, and Optical Physics, 69 (1). doi: 10.1103/PhysRevA.69.012304
Ralph, T. C. (2004). Scaling of multiple postselected quantum gates in optics. Physical Review A, 70 (1) 012312, 012312-1-012312-5. doi: 10.1103/PhysRevA.70.012312
Bowen, W. P., Schnabel, R., Lam, P. K. and Ralph, T. C. (2004). Experimental characterization of continuous-variable entanglement. Physical Review A, 69 (1) 012304, 1-17. doi: 10.1103/PhysRevA.69.012304
Cochrane, P. T., Ralph, T. C. and Dolinska, A. (2004). Optimal cloning for finite distributions of coherent states. Physical Review A, 69 (4) 042313, 042313-1-042313-6. doi: 10.1103/PhysRevA.69.042313
Glancy, S., Vasconcelos, H. M. and Ralph, T. C. (2004). Transmission of optical coherent-state qubits. Physical Review A, 70 (2) 022317, 022317-1-022317-7. doi: 10.1103/PhysRevA.70.022317
Weedbrook, C., Lance, A. M., Bowen, W. P., Symul, T., Ralph, T. C. and Lam, P. K. (2004). Quantum cryptography without switching. Physical Review Letters, 93 (17) 170504, 1-4. doi: 10.1103/PhysRevLett.93.170504
Jeong, H., Kim, M. S., Ralph, T. C. and Ham, B. S. (2004). Generation of macroscopic superposition states with small nonlinearity. Physical Review A, 70 (6) 061801, 061801-1-061801-4. doi: 10.1103/PhysRevA.70.061801
Gilchrist, A., Nemoto, K., Munro, W. J., Ralph, T. C., Glancy, S., Braunstein, S. L. and Milburn, G. J. (2004). Schrodinger cats and their power for quantum information processing. Journal of Optics B- Quantum and Semiclassical Optics, 6 (8), S828-S833. doi: 10.1088/1464-4266/6/8/032
Lund, A. P., Jeong, H., Ralph, T. C. and Kim, M. S. (2004). Conditional production of superpositions of coherent states with inefficient photon detection. Physical Review A, 70 (2) 020101, 020101-1-020101-4. doi: 10.1103/PhysRevA.70.020101
Ritsch, H., Milburn, G. J. and Ralph, T. C. (2004). Deterministic generation of tailored-optical-coherent-state superpositions. Physical Review A, 70 (3) 033804, 033804-1-033804-4. doi: 10.1103/PhysRevA.70.033804
O'Brien, Jeremy L., Pryde, Geoff, Gilchrist, Alexei, James, Dan, Langford, Nathan, Ralph, T. C. and White, A. G. (2004). Quantum process tomography of a controlled-NOT gate. Physical Review Letters, 93 (8) 080502, 080502-1-080502-4. doi: 10.1103/PhysRevLett.93.080502
O'Brien, J. L., Pryde, G. J., White, A. G., Ralph, T. C. and Branning, D. (2003). Demonstration of an All-Optical Quantum Controlled-NOT Gate. Nature, 426 (6964), 264-267. doi: 10.1038/nature02054
Ralph, T.C. (2003). Proposal for a simple error correction test gate in linear optics. IEEE journal of selected topics in quantum electronics, 9 (6), 1495-1497. doi: 10.1109/JSTQE.2003.820943
Brańczyk, A. M., Osborne, Tobias J., Gilchrist, Alexei and Ralph, T. C. (2003). Photon-added detection. Physical Review A: Atomic, Molecular, and Optical Physics, 68 (4). doi: 10.1103/PhysRevA.68.043821
Roos, P. A., Murphy, S. K., Meng, L. S., Carlsten, J. L., Ralph, T. C., White, A. G. and Brasseur, J. K. (2003). Quantum theory of the far-off-resonance continuous-wave Raman laser: Heisenberg-Langevin approach. Physical Review A - Atomic, Molecular, and Optical Physics, 68 (1). doi: 10.1103/PhysRevA.68.013802
Bowen, W. P., Lam, P. K. and Ralph, T. C. (2003). Biased EPR entanglement and its application to teleportation. Journal of Modern Optics, 50 (5), 801-813. doi: 10.1080/095003402101522620
Branczyk, A. M., Osborne, T. J., Gilchrist, A. and Ralph, T. C. (2003). Photon-added detection. Physical Review A, 68 (4), 043821-1-04328-8. doi: 10.1103/PhysRevA.68.043821
Bowen, W. P., Schnabel, R., Lam, P. K. and Ralph, T. C. (2003). Experimental investigation of criteria for continuous variable entanglement. Physical Review Letters, 90 (4) 043601, 043601-1-043601-4. doi: 10.1103/PhysRevLett.90.043601
Ralph, T. C., Gilchrist, A., Milburn, G. J., Munro, W. J. and Glancy, S. (2003). Quantum computation with optical coherent states. Physical Review A, 68 (4) 042319, 042319-1-042319-11. doi: 10.1103/PhysRevA.68.042319
Bowen, W. P., Treps, N., Buchler, B. C., Schnabel, R., Ralph, T. C., Bachor, H. A., Symul, T. and Lam, P. K. (2003). Experimental investigation of continuous-variable quantum teleportation. Physical Review A, 67 (3) 032302, 1-4. doi: 10.1103/PhysRevA.67.032302
Schnabel, R., Bowen, W. P., Treps, N., Ralph, T. C., Bachor, H. A. and Lam, P. K. (2003). Stokes-operator-squeezed continuous-variable polarization states. Physical Review A, 67 (1) 012316, 012316-1-012316-11. doi: 10.1103/PhysRevA.67.012316
Lund, A. P., Bell, T. B. and Ralph, T. C. (2003). Comparison of linear optics quantum-computation control-sign gates with ancilla inefficiency and an improvement to functionality under these conditions. Physical Review A, 68 (2) 022313, 022313-1-022313-16. doi: 10.1103/PhysRevA.68.022313
Cochrane, P. T. and Ralph, T. C. (2003). Tailoring teleportation to the quantum alphabet. Physical Review A - Atomic, Molecular, and Optical Physics, 67 (2). doi: 10.1103/PhysRevA.67.022313
Lund, A. P., Bell, T. B. and Ralph, T. C. (2003). Comparison of linear optics quantum-computation control-sign gates with ancilla inefficiency and an improvement to functionality under these conditions. Physical Review A - Atomic, Molecular, and Optical Physics, 68 (2). doi: 10.1103/PhysRevA.68.022313
Bowen, W. P., Treps, N., Buchler, B. C., Schnabel, R., Ralph, T. C., Symul, T. and Lam, P. K. (2003). Unity and non-unity gain quantum teleportation. IEEE journal of selected topics in quantum electronics, 9 (6), 1519-1532. doi: 10.1109/JSTQE.2003.820908
Dodd, Jennifer L., Ralph, Timothy C. and Milburn, G. J. (2003). Experimental requirements for Grover's algorithm in optical quantum computation. Physical Review A, 68 (4), 042328-1-042328-8. doi: 10.1103/PhysRevA.68.042328
Dolinska, A., Buchler, B. C., Bowen, W. P., Ralph, T. C. and Lam, P. K. (2003). Teleportation of continuous-variable polarization states. Physical Review A, 68 (5) 052308, 052308-1-052308-8. doi: 10.1103/PhysRevA.68.052308
Bowen, W. P., Treps, N., Schnabel, R., Ralph, T. C. and Lam, P. K. (2003). Continuous variable polarization entanglement, experiment and analysis. Journal of Optics B: Quantum and Semiclassical Optics, 5 (4), S467-S478. doi: 10.1088/1464-4266/5/4/352
Cochrane, P. T. and Ralph, T. C. (2003). Tailoring teleportation to the quantum alphabet. Physical Review A, 67 (2), 022313-1-022313-7. doi: 10.1103/PhysRevA.67.022313
Roos, P. A., Murphy, S. K., Meng, L. S., Carlsten, J. L., Ralph, T. C., White, A. G. and Brasseur, J. K. (2003). Quantum theory of the far-off-resonance continuous-wave Raman laser: Heisenberg-Langevin approach. Physical Review A, 68 (1) 013802, 013802-1-013802-12. doi: 10.1103/PhysRevA.68.013802
Ralph, T. C. (2002). Coherent superposition states as quantum rulers. Physical Review A, 65 (042313) 042313, 042313-1-042313-4. doi: 10.1103/PhysRevB.65.042313
Lam, P. K., Bowen, W. P. and Ralph, T. C. (2002). Quantum teleportation with Einstein-Podolsky-Rosen optical entanglement. The Physicist, 39 (3: 72)
Huntington, EH and Ralph, TC (2002). Separating the quantum sidebands of an optical field. Journal of Optics B-quantum And Semiclassical Optics, 4 (2), 123-128. doi: 10.1088/1464-4266/4/2/307
Korolkova, N., Leuchs, G., Loudon, R., Ralph, T.C. and Silberhorn, C. (2002). Polarization squeezing and continuous-variable polarization entanglement. Physical Review A, 65 (5) 052306, 052306-1-052306-12. doi: 10.1103/PhysRevA.65.052306
Ralph, T. C., Langford, N. K., Bell, T. B. and White, A. G. (2002). Linear optical controlled-NOT gate in the coincidence basis. Physical Review A - Atomic, Molecular, and Optical Physics, 65 (6). doi: 10.1103/PhysRevA.65.062324
Ralph, T. C. and Huntington, E.H. (2002). Unconditional continuous-variable dense coding. Physical Review A, 66 (042321) 042321, 042321-1-042321-4. doi: 10.1103/PhysRevA.66.042321
Ralph, T. C., White, A. G., Munro, W. J. and Milburn, G. J. (2002). Simple scheme for efficient linear optics quantum gates. Physical Review A, 65 (1) 012314, 012314-1-012314-6. doi: 10.1103/PhysRevA.65.012314
Ralph, T. C. and Huntington, E. H. (2002). Unconditional continuous-variable dense coding. Physical Review A - Atomic, Molecular, and Optical Physics, 66 (4). doi: 10.1103/PhysRevA.66.042321
Lund, A. P. and Ralph, T. C. (2002). Nondeterministic gates for photonic single-rail quantum logic. Physical Review A - Atomic, Molecular, and Optical Physics, 66 (3). doi: 10.1103/PhysRevA.66.032307
Cochrane, P. T., Ralph, T. C. and Milburn, G. J. (2002). Teleportation improvement by conditional measurements on the two-mode squeezed vacuum. Physical Review A, 65 (6) 062306, 062306-1-062306-6. doi: 10.1103/PhysRevA.65.062306
Ralph, T. C., Langford, N. K., Bell, T. B. and White, A. G. (2002). Linear Optical CNOT Gate in the Coincidence Basis. Physical Review A, 65 (6) 062324, 062324-1-062324-5. doi: 10.1103/PhysRevA.65.062324
Lund, A.P. and Ralph, T.C. (2002). Nondeterministic gates for photonic single-rail quantum logic. Physical Review A, 66 (032307), 032307-1-032307-4. doi: 10.1103/PhysRevA.66.032307
Silberhorn, C, Ralph, T. C., Lutkenhaus, N. and Leuchs, G (2002). Continuous Variable Quantum Cryptography:Beating the 3dB Loss Limit. Physical Review Letters, 89 (16), 167901-1-167901-4. doi: 10.1103/PhysRevLett.89.167901
Buchler, B. C., Lam, P. K., Bachor, H. A., Andersen, U. L. and Ralph, T. C. (2001). Squeezing more from a quantum nondemolition measurement. Physical Review A, 65 (1), 0118031-0118034. doi: 10.1103/PhysRevA.65.011803
Milburn, G. J., Ralph, T. C., White, A. G., Knill, E and Laflamme, R (2001). Efficient linear optics quantum coputation. Implementation of Quantum Computation, 1 (SUPPL. 1), 13-19.
Ralph, T. C. (2001). Interferometric tests of teleportation. Physical Review A, 65 (1) 012319, 012319-1-012319-12. doi: 10.1103/PhysRevA.65.012319
Huntington, E.H. and Ralph, T. C. (2001). Continuous-variable Bell-type correlations from two bright squeezed beams. Physical Review A, 65 (1) 012306, 012306-1-012306-9. doi: 10.1103/PhysRevA.65.012306
Bachor, H.A. and Ralph, T. C. (2001). Quantum noise transfer functions: A practical tool in quantum optics. Lecture Notes in Physics, 561, 313-332.
Ralph, TC (2000). Mach-Zehnder interferometer and the teleporter. Physical Review a, 61 (4) 044301. doi: 10.1103/PhysRevA.61.044301
Huntington, EH, Ralph, TC and Zawischa, I (2000). Sources of phase noise in an injection-locked solid-state laser. Journal of the Optical Society of America B-Optical Physics, 17 (2), 280-292. doi: 10.1364/JOSAB.17.000280
Ralph, Timothy C., Symul, Thomas and Lam, Ping Koy (2000). Security of continuous-variable quantum cryptography with Gaussian postselection. Physical Review A, 62 (062306) 062306, 062306-1-062306-7. doi: 10.1103/PhysRevA.62.062306
Ralph, T. C., Munro, W. J. and Polkinghorne, R. E. S. (2000). Proposal for the measurement of Bell-type correlations from continuous variables. Physical Review Letters, 85 (10), 2035-2039. doi: 10.1103/PhysRevLett.85.2035
Ralph, T. C. (2000). Continuous variable quantum cryptography. Physical Review A, 61 (1) 010303, 103031-103034. doi: 10.1103/PhysRevA.61.010303
Ralph, T. C. (2000). Franson-type interferometer for intensity fluctuations. Journal of Optics B: Quantum and Semiclassical Optics, 2 (6), L31-L34. doi: 10.1088/1464-4266/2/6/101
Ralph, T. C. (2000). Can signal-to-noise be improved by heterodyne detection using an amplitude squeezed local oscillator?. Physical Review Letters, 85 (3), 677-677. doi: 10.1103/PhysRevLett.85.677
Buchler, BC, Lam, PK and Ralph, TC (1999). Enhancement of quantum nondemolition measurements with an electro-optic feed-forward amplifier. Physical Review a, 60 (6), 4943-4950. doi: 10.1103/PhysRevA.60.4943
Leuchs, G, Ralph, TC, Silberhorn, C and Korolkova, N (1999). Scheme for the generation of entangled solitons for quantum communication. Journal of Modern Optics, 46 (14), 1927-1939. doi: 10.1080/09500349908231382
Polkinghorne, R. E. S. and Ralph, T. C. (1999). Continuous variable entanglement swapping. Physical Review Letters, 83 (11), 2095-2099. doi: 10.1103/PhysRevLett.83.2095
Ralph, TC, Lam, PK and Polkinghorne, RES (1999). Characterizing teleportation in optics. Journal of Optics B-Quantum and Semiclassical Optics, 1 (4), 483-489. doi: 10.1088/1464-4266/1/4/321
Lam, PK, Ralph, TC, Buchler, BC, McClelland, DE, Bachor, HA and Gao, J (1999). Optimization and transfer of vacuum squeezing from an optical parametric oscillator. Journal of Optics B-Quantum and Semiclassical Optics, 1 (4), 469-474. doi: 10.1088/1464-4266/1/4/319
Buchler, BC, Huntington, EH and Ralph, TC (1999). Noiseless phase quadrature amplification via an electro-optic feed-forward technique. Physical Review a, 60 (1), 529-533. doi: 10.1103/PhysRevA.60.529
Ralph, TC, Huntington, EH, Harb, CC, Buchler, BC, Lam, PK, Mcclelland, DE and Bachor, HA (1999). Understanding and controlling laser intensity noise. Optical and Quantum Electronics, 31 (5-7), 583-598. doi: 10.1023/A:1006943801659
Ralph, T. C. (1999). All-optical quantum teleportation. Optics Letters, 24 (5), 348-350. doi: 10.1364/OL.24.000348
Buchler, BC, Gray, MB, Shaddock, DA, Ralph, TC and McClelland, DE (1999). Suppression of classic and quantum radiation pressure noise by electro-optic feedback. Optics Letters, 24 (4), 259-261. doi: 10.1364/OL.24.000259
Ralph, T. C. and Lam, P. K. (1998). Teleportation with bright squeezed light. Physical Review Letters, 81 (25), 5668-5671. doi: 10.1103/PhysRevLett.81.5668
Chickarmane, V, Dhurandhar, SV, Ralph, TC, Gray, M, Bachor, HA and McClelland, DE (1998). Squeezed light in a frontal-phase-modulated signal-recycled interferometer. Physical Review a, 57 (5), 3898-3912. doi: 10.1103/PhysRevA.57.3898
Huntington, EH, Lam, PK, Ralph, TC, McClelland, DE and Bachor, HA (1998). Noiseless independent signal and power amplification. Optics Letters, 23 (7), 540-542. doi: 10.1364/OL.23.000540
Lam, PK, Ralph, TC, Huntington, EH, McClelland, DE and Bachor, HA (1998). Noiseless electro-optic processing of optical signals generated with squeezed light. Optics Express, 2 (3), 100-109. doi: 10.1364/OE.2.000100
Buchler, BC, Huntington, EH, Harb, CC and Ralph, TC (1998). Feedback control of laser intensity noise. Physical Review a, 57 (2), 1286-1294. doi: 10.1103/PhysRevA.57.1286
Huntington, EH, Buchler, BC, Harb, CC, Ralph, TC, McClelland, DE and Bachor, HA (1998). Feedback control of the intensity-noise of injection locked lasers. Optics Communications, 145 (1-6), 359-366. doi: 10.1016/S0030-4018(97)00419-7
Ralph, TC (1997). Robust transmission and reconstruction of fragile optical states. Physical Review a, 56 (5), 4187-4192. doi: 10.1103/PhysRevA.56.4187
Harb, CC, Ralph, TC, Huntington, EH, McClelland, DE, Bachor, HA and Freitag, I (1997). Intensity-noise dependence of Nd:YAG lasers on their diode-laser pump source. Journal of the Optical Society of America B-Optical Physics, 14 (11), 2936-2945. doi: 10.1364/JOSAB.14.002936
Lam, P. K., Ralph, T. C., Huntington, E. H. and Bachor, H. A. (1997). Noiseless signal amplification using positive electro-optic feedforward. Physical Review Letters, 79 (8), 1471-1474. doi: 10.1103/PhysRevLett.79.1471
Huntington, EH, Harb, CC, Ralph, TC, Bachor, HA and McClelland, DE (1997). Investigation of polarisation effects in injection locked lasers. Applied Physics B-Lasers and Optics, 64 (5), 507-514. doi: 10.1007/s003400050207
Ralph, TC (1997). Low noise amplification and efficient squeezing from rate matched lasers. Physical Review a, 55 (3), 2326-2333. doi: 10.1103/PhysRevA.55.2326
White, AG, Ralph, TC and Bachor, HA (1997). Noiseless amplification in cavity-based optical systems with an internal two-photon process .2. Self-frequency-doubling laser and second-harmonic generation, self-down-converting laser - Comment. Journal of Modern Optics, 44 (3), 651-652. doi: 10.1080/09500349708232928
Ralph, TC, Harb, CC and Bachor, HA (1996). Intensity noise of injection-locked lasers: Quantum theory using a linearized input-output method. Physical Review a, 54 (5), 4359-4369. doi: 10.1103/PhysRevA.54.4359
Harb, CC, Ralph, TC, Huntington, EH, Freitag, I, McClelland, DE and Bachor, HA (1996). Intensity-noise properties of injection-locked lasers. Physical Review a, 54 (5), 4370-4382. doi: 10.1103/PhysRevA.54.4370
White, Andrew G., Taubman, Matthew S., Ralph, Timothy C., Lam, Ping Koy, McClelland, David E. and Bachor, Hans-A. (1996). Experimental test of modular noise propagation theory for quantum optics. Physical Review a, 54 (4), 3400-3404. doi: 10.1103/PhysRevA.54.3400
White, AG, Ralph, TC and Bachor, HA (1996). Active versus passive squeezing by second-harmonic generation. Journal of the Optical Society of America B-Optical Physics, 13 (7), 1337-1346. doi: 10.1364/JOSAB.13.001337
RALPH, TC and BACHOR, HA (1995). NOISELESS AMPLIFICATION OF THE COHERENT AMPLITUDE OF BRIGHT SQUEEZED-LIGHT USING A STANDARD LASER-AMPLIFIER (VOL 119, PG 301, 1995). Optics Communications, 122 (1-3), 94-98. doi: 10.1016/0030-4018(95)00625-0
Savage, CM, Gordon, D and Ralph, TC (1995). Numerical Modeling of Evanescent-Wave Atom Optics. Physical Review a, 52 (6), 4741-4746. doi: 10.1103/PhysRevA.52.4741
Ralph, TC and Bachor, HA (1995). Noiseless Amplification of the Coherent Amplitude of Bright Squeezed-Light Using a Standard Laser-Amplifier. Optics Communications, 119 (3-4), 301-304. doi: 10.1016/0030-4018(95)00336-7
Ralph, TC, Taubman, MS, White, AG, McClelland, DE and Bachor, HA (1995). Squeezed-Light From 2nd-Harmonic Generation - Experiment Versus Theory. Optics Letters, 20 (11), 1316-1318. doi: 10.1364/OL.20.001316
Ralph, TC and White, AG (1995). Retrieving Squeezing From Classically Noisy Light in 2nd-Harmonic Generation. Journal of the Optical Society of America B-Optical Physics, 12 (5), 833-839. doi: 10.1364/JOSAB.12.000833
Ralph, TC (1994). Bistability in a 4-Level Laser with a Resonant Pump Mode. Physical Review a, 49 (6), 4979-4984. doi: 10.1103/PhysRevA.49.4979
Ralph, TC, Stevenson, AJ, Savage, CM and Bachor, HA (1993). High-Power Quenching Resulting From Pump Excited-State Absorption in An Erbium-Doped Fiber Laser. Optics Letters, 18 (14), 1162-1164. doi: 10.1364/OL.18.001162
Ralph, TC and Savage, CM (1993). Squeezing From Conventionally Pumped Lasers - a Rate-Equation Approach. Quantum Optics, 5 (2), 113-119. doi: 10.1088/0954-8998/5/2/006
Ralph, TC and Savage, CM (1992). Producing Squeezed Light From Conventionally Pumped Lasers. Journal of the Optical Society of America B-Optical Physics, 9 (10), 1895-1903. doi: 10.1364/JOSAB.9.001895
Savage, CM and Ralph, TC (1992). Squeezed Light From Conventionally Pumped Lasers with Nonuniform Spatial Structure. Physical Review a, 46 (5), 2803-2810. doi: 10.1103/PhysRevA.46.2803
Ralph, T. C. and Savage, C. M. (1991). Squeezed light from a coherently pumped four-level laser. Physical Review A, 44 (11), 7809-7814. doi: 10.1103/PhysRevA.44.7809
Ralph, TC and Savage, CM (1991). Squeezed Light From Conventionally Pumped Multilevel Lasers. Optics Letters, 16 (14), 1113-1115. doi: 10.1364/OL.16.001113
Conference Papers
Wollmann, Sabine, Ducuara, Andrés F., Qiang, Xiaogang, Tasker, Joel F., Zhou, Xiaoqi, Wang, Jianwei, Wilkes, Callum M., Loke, Thomas, Oagara, Sean, Kling, Laurent, Marshall, Graham D., Santagati, Raffaele, Ralph, Timothy C., Wang, Jingbo B., Oabrien, Jeremy L., Thompson, Mark G., Skrzypczyk, Paul and Matthews, Jonathan C. F. (2019). Maximisation of quantum correlations under local filtering operations. 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, 23 - 27 June 2019. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/CLEOE-EQEC.2019.8871647
Ho, Joseph, Patel, Raj B., Ralph, Timothy C. and Pryde, Geoff J. (2019). Quantum algorithms on a four-qubit photonic controlled-shift gate. Quantum Information and Measurement 2019, Rome, Italy , 4–6 April 2019. Washington, D.C.: OSA - The Optical Society. doi: 10.1364/QIM.2019.F5A.41
Serikawa, Takahiro, Yoshikawa, Jun-ichi, Yonezawa, Hidehiro, Ralph, Timothy C., Huntington, Elanor H. and Furusawa, Akira (2018). Generation of Schrödinger’s cat state in an optical double sideband mode. CLEO: QELS_Fundamental Science, CLEO_QELS 2018, San Jose, CA, United States, 13–18 May 2018. Washington D.C., United States: OSA - The Optical Society. doi: 10.1364/CLEO_QELS.2018.FTh4G.6
Abrahão, Raphael A., Shahandeh, Farid, Gillett, Geoff, Ringbauer, Martin, Weinhold, Till, Almeida, Marcelo P., Ralph, Timothy C. and White, Andrew G. (2018). The quest for nonclassicality using number-resolving single-photon detectors. Frontiers in Optics, FIO 2018, Washington, DC USA, 18-20 September 2018. Washington, D.C.: OSA - The Optical Society. doi: 10.1364/FIO.2018.JTu2A.55
Haw, Jing Yan, Zhao, Jie, Dias, Josephine, Assad, Syed M., Bradshaw, Mark, Blandino, Remi, Symul, Thomas, Ralph, Timothy C. and Lam, Ping Koy (2017). Surpassing the no-cloning limit with a heralded hybrid linear amplifier. Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), Singapore, 31 July-4 August 2017. Piscataway, NJ, United States: IEEE. doi: 10.1109/CLEOPR.2017.8119040
Zhao, Jie, Dias, Josephine, Haw, Jing Yan, Bradshaw, Mark, Blandino, Remi, Symul, Thomas, Ralph, Timothy, Assad, Syed and Lam, Ping Koy (2017). Quantum enhancement of signal-to-noise ratio for arbitrary coherent states using heralded linear amplifiers. Conference on Lasers and Electro-Optics/Pacific Rim, CLEOPR 2017, Singapore, 31 July - 4 August 2017. Piscataway, NJ, United States: IEEE.
Zhao, Jie, Dias, Josephine, Haw, Jing Yan, Bradshaw, Mark, Blandino, Remi, Symul, Thomas, Ralph, Timothy, Assad, Syed and Lam, Ping Koy (2017). Quantum enhancement of signal-to-noise ratio for arbitrary coherent states using heralded linear amplifiers. Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), Singapore, 31 July-4 August 2017. Piscataway, NJ, United States: IEEE. doi: 10.1109/CLEOPR.2017.8119107
Ralph, T. C. (2016). New directions in optical quantum computing. 11th Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2015, Busan, South Korea, 24 - 28 August 2015. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers . doi: 10.1109/CLEOPR.2015.7375881
Lund, Austin and Ralph, Timothy C. (2016). Enhancing optical quantum channels. SPIE, San Diego, CA, United States, 28–29 August 2016. Bellingham, WA, United States: SPIE. doi: 10.1117/12.2237438
Lee, Seung-Woo, Park, Kimin, Ralph, Timothy C. and Jeong, Hyunseok (2016). Near-deterministic Bell measurement for multiphoton quantum information processing. 11th Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2015, Busan, Korea, 24-28 August 2015. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers . doi: 10.1109/CLEOPR.2015.7375885
Rahimi-Keshari, Saleh, Ralph, Timothy C. and Caves, Carlton M. (2016). Efficient classical simulation of quantum-optics experiments. CLEO: QELS Fundamental Science 2016, San Jose, CA United States, 5–10 June 2016. Washington, DC United States: Optica. doi: 10.1364/CLEO_QELS.2016.FTh4C.2
Ralph, Timothy (2014). Boson sampling with continuous variable measurements. Frontiers in Optics, FiO 2016, Rochester, NY, 17-21 October 2016. Washington, D.C.: OSA - The Optical Society. doi: 10.1364/FIO.2016.FF1C.2
Hosseini, Sara, Rahimi-Keshari, Saleh, Haw, Jing Yan, Assad, Syed M., Chrzanowski, Helen M., Janousek, Jiri, Symul, Thomas, Ralph, Timothy C., Lam, Ping Koy, Gu, Mile, Modi, Kavan and Vedral, Vlatko (2014). Experimental verification of quantum discord in continuousvariable states and operational significance of discord consumption. CLEO: QELS Fundamental Science (CLEO QELS 2014), San Jose, CA United States, 8-13 June 2014. Washington, DC United States: Optical Society of American (OSA). doi: 10.1364/cleo_qels.2014.fth3a.6
Patel, Raj B., Kocsis, Sacha, Ho, Joseph, Hall, Michael J. W., Ferreyrol, Franck, Bennet, Adam, Ralph, Timothy C. and Pryde, Geoff J. (2014). Entanglement and simplified quantum information operations. Frontiers in Optics 2014, Tucson, AZ, United States, 19–23 October 2014. Washington DC United States: Optical Society of America (OSA). doi: 10.1364/FIO.2014.FW4C.1
Kuntz, Katanya B., Song, Hongbin, Webb, James G., Wheatley, Trevor A., Furusawa, Akira, Ralph, Timothy C. and Huntington, Elanor H. (2014). Quantum non-Gaussian and Gaussian states at multiple side-band frequencies. CLEO: QELS Fundamental Science (CLEO QELS 2014), San Jose, CA United States, 8-13 June 2014. Washington, DC United States: Optical Society of American (OSA). doi: 10.1364/cleo_qels.2014.fth3a.3
Chrzanowski, Helen M., Gu, Mile, Assad, Syed M., Symul, Thomas, Modi, Kevan, Ralph, Timothy C., Vedral, Vlatko and Lam, Ping Koy (2014). Discord as a quantum resource for bi-partite communication. 11th International Conference on Quantum Communication, Measurement and Computation, QCMC 2012, Vienna, Austria, 30 July- 3 August 2012. College Park, MD United States: American Institute of Physics. doi: 10.1063/1.4903110
Fedrizzi, Alessandro, Broome, Matthew A., White, Andrew G., Fickler, Robert, Rahimi-Keshari, Saleh and Ralph, Timothy C. (2013). Direct characterization of any linear photonic device. APS March Meeting 2013, Baltimore, MD, USA, 18–22 March, 2013. College Park, MD, United States: American Physical Society.
Broome, Matthew A., Fedrizzi, Alessandro, Rahimi-Keshari, Saleh, Branczyk, Agata M., Dove, Justin, Aaronson, Scott, Ralph, Timothy C. and White, Andrew G. (2013). Bosonsampling with realistic single-photon sources. International Quantum Electronics Conference, IQEC 2013, Munich, Germany, 12 - 16 May 2013. Piscataway, NJ United States: I E E E. doi: 10.1109/CLEOE-IQEC.2013.6801699
Broome, Matthew A., Fedrizzi, Alessandro, Rahimi-Keshari, Saleh, Dove, Justin, Aaronson, Scott, Ralph, Timothy C. and White, Andrew G. (2013). Experimental bosonsampling in a photonic circuit. IEEE Photonics Society Summer Topical Meeting Series, PSSTMS 2013, Waikoloa, HI, United States, 8 - 10 July 2013. Piscataway, NJ, United States: IEEE. doi: 10.1109/PHOSST.2013.6614564
Ralph, T. C., Walk, N., Symul, T. and Lam, P. K. (2013). Continuous-variable QKD with post-selection is secure. IEEE Photonics Society Summer Topical Meeting Series, PSSTMS 2013, Waikoloa, HI, 8 - 10 July 2013. Piscataway, NJ United States: I E E E. doi: 10.1109/PHOSST.2013.6614521
Broome, Matthew A., Fedrizzi, Alessandro, Rahimi-Keshari, Saleh, Dove, Justin, Aaronson, Scott, Ralph, Timothy C. and White, Andrew G. (2013). Experimental bosonsampling in a tunable optical network. CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013, San Jose, CA United States, 9 - 14 June 2013. San Jose, California United States: Quantum Simulators I (QW1C). doi: 10.1364/CLEO_QELS.2013.QW1C.3
Gu, M., Chrzanowski, H. M., Assad, S. M., Symul, T., Modi, K., Ralph, T.C., Vedral, V. and Lam, P. K. (2013). Discord as a consumable resource. 10th Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2013, Kyoto, Japan, 30 June - 4 July 2013. Piscataway, NJ United States: I E E E. doi: 10.1109/CLEOPR.2013.6600227
Walk, N., Symul, T., Lam, P. K. and Ralph, T. C. (2013). Unconditional security of Gaussian post-selected continuous variable quantum key distribution. 2013 Conference on Lasers and Electro-Optics Europe & International Quantum Electronics Conference (CLEO/Europe-IQEC 2013), Munich, 12-16 May 2013. Piscataway, NJ, United States: IEEE. doi: 10.1109/CLEOE-IQEC.2013.6801697
Broome, M. A., Fedrizzi, A., Rahimi-Keshari, S., Dove, J., Aaronson, S., Ralph, T. C. and White, Andrew G. (2013). Experimental bosonsampling. CQO-X: The Tenth Rochester Conference on Coherence and Quantum Optics, 2013, with QIM 2: The Second International Conference on Quantum Information and Measurement, 2013, Rochester, NY, USA, 17-20 June, 2013. Washington, DC, USA: Optical Society of America. doi: 10.1364/QIM.2013.W5B.3
Janousek, Jiri, Chrzanowski, Helen, Hosseini, Sarah, Assad, Syed, Symul, Thomas, Walk, Nathan, Ralph, Tim and Lam, Ping Koy (2013). Virtual noiseless amplification. CLEO/EUROPE - IQEC 2013: Conference on Lasers and Electro-Optics - International Quantum Electronics Conference, Munich, Germany, 13-16 May, 2013. Piscataway, NJ, USA: IEEE. doi: 10.1109/CLEOE-IQEC.2013.6801727
Ferreyrol, F., Ralph, T. C. and Pryde, G. J. (2013). Implementation of a quantum Fredkin gate using an entanglement resource. CLEO/EUROPE - IQEC 2013: Conference on Lasers and Electro-Optics - International Quantum Electronics Conference, Munich, Germany, 13-16 May, 2013. Piscataway, NJ, USA: IEEE. doi: 10.1109/CLEOE-IQEC.2013.6801703
Rahimi-Keshari, Saleh, Broome, Matthew A., Fickler, Robert, Fedrizzi, Alessandro, Ralph, Timothy C. and White, Andrew G. (2013). Direct characterization of any linear photonic device. Conference on Lasers and Electro-Optics Europe & International Quantum Electronics Conference (CLEO/Europe-IQEC), Munich, Germany, 12-16 May, 2013. Piscataway, NJ, USA: IEEE. doi: 10.1109/CLEOE-IQEC.2013.6801733
Lam, P. K., Hosseini, M., Campbell, G., Pinel, O., Sparkes, B., Twamley, J., Rebic, S., Chrzanowski, H. M., Assad, S., Bernu, J., Ralph, T. C., Walk, N., Symul, T. and Buchler, B. C. (2013). Building a quantum repeater with quantum memories and noiseless amplifiers. 10th Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2013, Kyoto, Japan, 30 June - 4 July 2013. Piscataway, NJ United States: I E E E. doi: 10.1109/CLEOPR.2013.6599943
Walk, Nathan, Ralph, Timothy C., Downes, Tony, Symul, Thomas and Lam, Ping Koy (2011). Continuous variable quantum key distribution: Security, repeaters and relativity. Washington, D.C.: Optical Society of America (OSA). doi: 10.1364/icqi.2011.qmf4
Pienaar, Jacques, Myers, Casey and Ralph, Timothy C. (2011). The Heisenberg picture for single photon states. 10th International Conference on Quantum Communication, Measurement and Computing (QCMC), Brisbane, Australia, 19-23 July 2010. Melville, NY, United States: American Institute of Physics. doi: 10.1063/1.3630189
Walk, Nathan, Ralph, Timothy C., Symul, Thomas and Lam, Ping Koy (2011). Security of Post-selection based Continuous Variable Quantum Key Distribution against Arbitrary Attacks. Conference on Lasers and Electro-Optics (CLEO), Baltimore Md, May 01-06, 2011. NEW YORK: IEEE. doi: 10.1364/cleo_at.2011.jtuc4
Chrzanowski, H. M., Symul, T., Bernu, J., Hage, B., Lund, A., Ralph, T. C. and Lam, P. K. (2011). Schrödinger kitten and cat states characterisation using only continuous variables and Gaussian resources. 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011, Munich, Germany, 22-26 May 2011. Piscataway, NJ United States: IEEE. doi: 10.1109/CLEOE.2011.5943387
Chrzanowski, Helen, Bernu, Julien, Sparkes, Ben, Hage, Boris, Lund, Austin, Ralph, Tim, Lam, Ping Koy and Symul, Thomas (2011). Photon number discrimination without a photon counter and reconstructing non-Gaussian states of light. Conference on Lasers and Electro-Optics Pacific Rim, Sydney, Australia, 28 August - 1 September 2011.
Branczyk, Agata M., Stace, Thomas M. and Ralph, T. C. (2011). Time ordering in spontaneous parametric down-conversion. 10th International Conference on Quantum Communication, Measurement and Computing (QCMC), Brisbane, Australia, 19-23 July 2010. Melville, NY, United States: American Institute of Physics. doi: 10.1063/1.3630207
Wheatley, T. A., Berry, D. W., Yonezawa, H., Nakane, D., Arao, H., Pope, D. T., Ralph, T. C., Wiseman, H. M., Furusawa, A. and Huntington, E. H. (2011). Adaptive optical phase estimation using time-symmetric quantum smoothing. 10th International Conference on Quantum Communication, Measurement and Computing (QCMC), Brisbane, Australia, 19-23 July 2010. Melville, NY, United States: American Institute of Physics. doi: 10.1063/1.3630163
Assad, Syed, Chrzanowski, Helen, Symul, Thomas, Lam, Ping Koy, Ralph, Tim, Gu, Mile and Vedral, Vlatko (2011). A functional interpretation of continuous variable quantum discord. IQEC/CLEO Pacific Rim Conference 2011 incorporating ACOLS and ACOFT, Sydney, NSW, Australia, 28 August-1 September, 2011. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/IQEC-CLEO.2011.6194178
Yonezawa, Hidehiro, Nakane, Daisuke, Wheatley, Trevor A., Iwasawa, Kohjiro, Takeda, Shuntaro, Arao, Hajime, Berry, Dominic W., Ralph, Timothy C., Wiseman, Howard M., Huntington, Elanor and Furusawa, Akira (2011). Squeezing-enhanced adaptive optical phase estimation. Quantum Electronics and Laser Science Conference (QELS), Baltimore, MD, United States, 1-6 May 2011. Piscataway, NJ, United States: IEEE. doi: 10.1364/QELS.2011.QFD5
Politi, Alberto, Matthews, Jonathan C. F., Laing, Anthony, Peruzzo, Alberto, Kalasuwan, Pruet, Zhou, Xiao-Qi, Rodas, Maria, Cryan, Martin J., Rarity, John G., Stefanov, Andre, Ralph, Timothy C., Yu, Siyuan, Thompson, Mark G. and O'Brien, Jeremy L. (2010). Advances in photonic quantum information science. CLEO/QELS: 2010 Laser Science to Photonic Applications. Conference on Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), San Jose, CA, USA, 16-21 May, 2010. Piscataway, NJ, USA: IEEE. doi: 10.1364/IPRSN.2010.IMA2
Nakane, D., Wheatley, T. A., Berry, D. W., Yonezawa, H., Arao, H., Pope, D. T., Ralph, T. C., Wiseman, H. M., Huntington, E. H. and Furusawa, A. (2010). Adaptive optical phase estimation. CLEO/QELS: 2010 Laser Science to Photonic Applications. Conference on Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), San Jose, CA, USA, 16-21 May, 2010. Piscataway, NJ, USA: IEEE. doi: 10.1364/CLEO.2010.JThF4
Symul, T., Sharma, V., Ralph, T. C. and Lam, P. K. (2010). Coherent state quantum key distribution with continuous-wave laser beams. OFC/NFOEC 2010: Conference on Optical Fiber Communication, collocated National Fiber Optic Engineers Conference, San Diego, CA, USA, 21-25 March, 2010. Piscataway, NJ, United States: I E E E. doi: 10.1364/OFC.2010.OWC6
Heurs, M., Webb, J. G., Ralph, T. C. and Huntington, E. H. (2010). Generation of a comb of vacuum squeezing over 2.4 GHz for multiplexed communication. CLEO/QELS: 2010 Laser Science to Photonic Applications. Conference on Lasers and Electro-Optics (CLEO) and Quantum Electronics and Laser Science Conference (QELS), San Jose, CA, USA, 16-21 May, 2010. Piscataway, NJ, USA: IEEE. doi: 10.1364/QELS.2010.QFA2
Pienaar, Jacques and Ralph, Timothy C. (2010). Event operators and quantum gates. FFP10: Tenth International Symposium. Frontiers of Fundamental and Computational Physics 2009, Perth, WA, Australia, 24-26 November, 2009. College Park, MD, United States: American Institute of Physics. doi: 10.1063/1.3460194
Politi, Alberto, Matthews, Jonathan C. F., Laing, Anthony, Peruzzo, Alberto, Kalasuwan, Pruet, Zhou, Xiao-Qi, Verde, Maria Rodas, Rarity, John G., Stefanov, Andre, Ralph, Timothy C., Thompson, Mark G. and O'Brien, Jeremy L. (2010). Quantum information science with photonic chips. ECOC 2010: 36th European Conference and Exhibition on Optical Communication, Torino, Italy, 19-23 September, 201. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ECOC.2010.5621301
Ralph, T. C. and Lund, A. P. (2009). Nondeterministic noiseless linear amplification of quantum systems. Quantum Communication, Measurement and Computing (QCMC): Ninth International Conference on QCMC, Calgary, Canada, 19-24 August 2008. United States: American Institute of Physics. doi: 10.1063/1.3131295
Coldenstrodt-Ronge, H. B., Worsley, A. P., Lundeen, J. S., Feito, A., Pregnell, K. L., Silberhorn, Ch., Mosley, P. J., Smith, B. J., Puentes, G., Thomas-Peter, N., Ralph, T. C., Eisert, J., Plenio, M. B. and Walmsley, I. A. (2009). Full characterization of quantum optical detectors. CLEO/Pacific Rim 2009: 8th Pacific Rim Conference on Lasers and Electro-Optics, Shanghai, China, 30 August–3 September, 2009. Piscataway, NJ, USA: IEEE. doi: 10.1109/CLEOPR.2009.5292056
Xiang, G. Y., Ralph, T. C., Lund, A. P., Walk, N. and Pryde, Geoff J. (2009). Noiseless linear amplification and distillation of entanglement. ACOLS ACOFT 09, The University of Adelaide, 29/11/09 -3/12/09. South Australia: The University of Adelaide.
Berry, D. W., Hyunseok, J., Stobinska, M. and Ralph, T. C. (2008). The CHSH-bell inequality and Tsirelson's bound with postselection. Conference on and Quantum Electronics and Laser Science Conference Lasers and Electro-Optics, QELS 2008, San Jose, CA, 4 - 9 May 2008. Piscataway, NJ United States: I E E E. doi: 10.1109/QELS.2008.4553020
Wheatley, T. A., Huntington, E. H., Berry, D. W., Wiseman, H. M. and Ralph, T. C. (2008). Quantum optical adaptive phase estimation of sidebands. Conference on and Quantum Electronics and Laser Science Conference Lasers and Electro-Optics, QELS 2008, San Jose, CA, 4 - 9 May 2008. Piscataway, NJ United States: I E E E. doi: 10.1109/QELS.2008.4553149
Huntington, E. H., Harb, C. C., Heurs, M. and Ralph, T. C. (2007). The quantum noise limits to simultaneous intensity and frequency stabilization of solid-state lasers. 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, CLEO, , , June 17, 2007-June 22, 2007. NEW YORK: Optical Society of America. doi: 10.1109/CLEO.2007.4453689
Downes, T., Milburn, G. J. and Ralph, T. C. (2007). Can gravitational curvature induce decorrelation of optical entanglement. Quantum Communications and Quantum Imaging V, San Diego, USA, 26 August 2007. BELLINGHAM: SPIE-INT SOC OPTICAL ENGINEERING. doi: 10.1117/12.740085
Leung P.M. and Ralph T.C. (2007). Improving fidelity of skewed output states of optical zeno gates. 2007 Quantum Electronics and Laser Science Conference, QELS, Baltimore, MD, May 6, 2007-May 11, 2007. doi: 10.1109/QELS.2007.4431700
Assad S., Alton D.J., Symul T., Lam P.K., Weedbrook C. and Ralph T. (2007). Continuous variable quantum cryptography: Post-selection with thermal noise. 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, CLEO, Munich, June 17, 2007-June 22, 2007. doi: 10.1109/CLEOE-IQEC.2007.4386770
Jeong, Hyunseok and Ralph, Timothy C. (2007). Schrodinger cat states for quantum information processing. Quantum Information Processing and Communication Workshop, Prague Czech Republic, 2005. COVENT GARDEN: IMPERIAL COLL PRESS. doi: 10.1142/9781860948169_0009
Grosse N.B., Symul T., Stobinska M., Ralph T.C. and Lam P.K. (2007). Measuring photon anti-bunching from sideband squeezing with continuous-variable techniques. 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, CLEO, Munich, June 17, 2007-June 22, 2007. Optical Society of America. doi: 10.1109/CLEOE-IQEC.2007.4386953
Sharma, Vikram, Lance, Andrew M., Symul, Thomas, Weedbrook, Christian, Ralph, Timothy C. and Lam, Ping Koy (2006). A complete quantum cryptographic system using a continuous wave laser. Conference on Microelectronics - Design, Technology and Packaging II, Brisbane Australia, Dec 12-14, 2005. BELLINGHAM: SPIE-INT SOC OPTICAL ENGINEERING. doi: 10.1117/12.651721
Webb, J. G., Ralph, T. C. and Huntington, E. H. (2006). Homodyne measurement of average photon number. Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, CLEO/QELS 2006, , , May 21, 2006-May 26, 2006. Optical Society of America. doi: 10.1109/CLEO.2006.4628675
Lund A.P. and Ralph T.C. (2006). Efficient coherent state quantum computing by adaptive measurements. Quantum Electronics and Laser Science Conference, QELS 2006, Long Beach, CA, May 21, 2006-May 21, 2006. Optical Society of America. doi: 10.1109/CLEO.2006.4628964
Ralph, T. C. (2006). A model for non-linear quantum evolution based on time displaced entanglement. Quantum Communications and Quantum Imaging IV, San Diego, USA, 13 August, 2006. Bellingham, USA: SPIE. doi: 10.1117/12.680097
Pryde, G. J., O'Brien, J. L., White, A. G., Ralph, T. C., Bartlett, S. D. and Wiseman, H. M. (2005). Using entanglement in photonic qubit measurements. Optics and photonics 2005: Quantum Communications and Quantum Imaging III, San Diego, CA, United States, 31 July - 4 August 2005. Bellingham, WA, United States: S P I E - International Society for Optical Engineering. doi: 10.1117/12.616166
Symul, T., Lance, A. M., Sharma, V., Lam, P. K., Weedbrook, C. and Ralph, T. C. (2005). Successful quantum key distribution with simultaneous quadrature measurement in the presence of 90% line loss. doi: 10.1109/EQEC.2005.1567468
Rohde, Peter P., Pryde, G. J., O'Brien, J. L. and Ralph, Timothy C. (2005). Quantum gate characterization in an extended Hilbert space. Optical Society of America.
Huntington, E. H., Milford, G. N., Robilliard, C. and Ralph, T. C. (2005). Coherent manipulation of quantum optical sideband modes. Optical Society of America. doi: 10.1109/qels.2005.1548743
Gilchrist A., Hayes A.J.F. and Ralph T.C. (2005). Linear optical quantum computation with parity encoding. 2005 Quantum Electronics and Laser Science Conference (QELS), Baltimore, MD, May 22, 2005-May 27, 2005. Optical Society of America. doi: 10.1109/qels.2005.1548654
Ralph, T. C., Langford, N. K., Bell, T. B., O'Brien, J. L., Pryde, G. J., White, A. G. and Milburn, G. J. (2004). Investigation of two qubit quantum gates in linear optics. Quantum Communications and Quantum Imaging, San Diego, USA, 6-8 August 2003. Bellingham, WA, U.S.A.: SPIE. doi: 10.1117/12.505078
Bowen, W. P., Hsu, M. T. L., Symul, T., Lance, A. M., Buchler, B. C., Schnabel, R., Treps, N., Bachor, H.-A., Ralph, T. C. and Lam, P. K. (2004). Photon number diagram for characterizing continuous variable entanglement. , pp. 315-323. Laser Spectroscopy, Palm Cove, Queensland Australia, 14th -18th July, 2003. SINGAPORE: WORLD SCIENTIFIC PUBL CO PTE LTD. doi: 10.1142/9789812703002_0048
Nemoto, K., Gilchrist, A. G., Munro, W. J., Ralph, T. C., Braunstein, S. L. and Milburn, G. J. (2003). Quantum information processing with Schrodinger cats. Fluctuations and Noise in Photonics and Quantum Optics, Santa Fe, NM, USA, 2 June, 2003. Bellingham, USA: SPIE. doi: 10.1117/12.497230
Pryde G.J., O'Brien J.L.O., White A.G., Ralph T.C., Bell T.B., Langford N.K. and Milburn G.J. (2003). Experimental linear optics controlled-NOT gates. European Quantum Electronics Conference, EQEC 2003, Munich, , June 22, 2003-June 27, 2003. Institute of Electrical and Electronics Engineers Inc.. doi: 10.1109/EQEC.2003.1314242
Gilchrist, A., Kendon, V., Milburn, G. J., Munro, W. J., Ralph, T. C. and White, A. G. (2003). Efficient linear optics quantum computation. 6th International Conference on Quantum Communication, Measurement and Computing (QCMC 02), Cambridge, Massachusetts USA, 22-26 July 2002. New Jersey, USA: Rinton Press.
Ralph, T. C., Munro, W. J. and Milburn, G. J. (2003). Quantum computation based on linear optics. Quantum Optics in Computing and Communications, Shanghai, China, 16 October 2002. Bellingham, USA: SPIE. doi: 10.1117/12.483016
Lam, P. K., Bowen, W. P., Treps, N., Buckler, B. C., Schnabel, R., Symul, T., Lance, A. M., Sanders, B. C., Tyc, T. and Ralph, T. C. (2003). Continuous variable quantum teleportation and quantum secret sharing. 2003 European Quantum Electronics Conference, EQEC 2003, Munich, Germany, 22-27 June 2003. Piscataway, NJ United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/EQEC.2003.1314268
O'Brien, J. L., Pryde, G. J., White, A. G., Ralph, T. C., Bell, T. B., Langford, N. K. and Milburn, G. J. (2003). Construction of a non-deterministic 2-photon CNOT gate. Trends in Optics and Photonics Series: Quantum electronics and Laser Science (QELS), Baltimore, MD, United States, 1-6 June 2003. Washington, DC, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/QELS.2003.237941
Korolkova, N, Heersink, J, Silberhorn, C, Leuchs, G, Ralph, TC and Loudon, R (2003). Continuous-variable polarization entanglement. 6th International Conference on Quantum Communication, Measurement and Computing (QCMC 02), Cambridge Ma, Jul 22-26, 2002. PRINCETON: RINTON PRESS, INC.
Pryde, G.J., O'Brien, J.L., Bell, T.B., Langford, N.K., Milburn, G.J., Ralph, T.C. and White, AG (2003). Efficient linear optical quantum computation. 6th International Conference on Quantum Communication, Measurement and Computing (QCMC 02), Cambridge, MA, United States, 22-26 July 2002. Princeton, NJ, United States: Rinton Press.
Bowen, W. P., Schnabel, R., Treps, N., Bachor, H. A., Lam, P. K. and Ralph, T. C. (2003). An experimental investigation of criteria for continuous variable entanglement. Trends in Optics and Photonics Series: Quantum electronics and Laser Science (QELS), , , June 1, 2003-June 6, 2003. Institute of Electrical and Electronics Engineers Inc.. doi: 10.1109/EQEC.2003.1314210
Symul, T., Bowen, W. P., Schnabel, R., Treps, N., Buchler, B. C., Ralph, T. C., Lance, A. M., Grosse, N. B., Dolinska, A., Wu, J. W., Gao, J. R., Fabre, C., Bachor, H.-A. and Lam, P. K. (2003). Optical squeezing in temporal, polarization, and spatial domains. Fluctuations and Noise in Photonics and Quantum Optics II, Santa Fe, NM, USA, 2nd June, 2003. Bellingham, USA: SPIE. doi: 10.1117/12.497081
Milburn, G.J., Ralph, T., Gilchrist, A., White, A., Munro, W.J. and Kendon, V (2003). Efficient linear optics quantum computation. 6th International Conference on Quantum Communication, Measurement and Computing (QCMC 02), Cambridge, MA, United States, 22-26 July 2002. Princeton, NJ, United States: Rinton Press.
Gilchrist, A., Ralph, T.C., Munro, W.J. and Milburn, G.J. (2003). Quantum computation with coherent states. 6th International Conference on Quantum Communication, Measurement and Computing (QCMC 02), Cambridge, MA, United States, 22-26 July 2002. Princeton, NJ, United States: Rinton Press.
Schnabel, R., Bowen, W. P., Treps, N., Buchler, B. C., Ralph, T. C., Lam, P. K. and Bachor, H. A. (2003). Optical experiments beyond the quantum limit: Squeezing entanglement and teleportation. Russian Federation: Optical Society of America. doi: 10.1134/1.1576832
Bachor, Hans-A., Lam, P. K., Bowen, W. P., Schnabel, R., Bennetts, S., Buchler, B. C. and Ralph, T. C. (2001). Optical quantum information processing: experiments with CW laser light. 1st International Conference on Experimental Implementation of Quantum Computation, Australian National Maritime Museum, Sydney, 16th-19th January, 2001. Rinton Press Inc.
Ralph, T. C. (2001). Teleportation criteria: form and signifcance. TAMU-ONR Workshop, Jackson, Wyoming, USA, 26-30 July, 1999. Berlin / Heidelberg: Springer. doi: 10.1007/3-540-40894-0_17
Bachor, HA, Lam, PK, Bowen, W, Schnabel, R, Bennetts, S, Buchler, B, Andersen, UL and Ralph, TC (2001). Optical quantum information processing: Experiments with CW laser light. 1st International Conference on Experimental Implementation of Quantum Computation, Sydney Australia, Jan 16-19, 2001. PRINCETON: RINTON PRESS, INC.
Ralph, T. C. (2000). Quantum key distribution with continuous variables. QELS 2000, The Moscone Convention Center, San Francisco, California, 7-12 May, 2000. US: Optical Society of America.
Ralph, T. C., Munro, W. J. and Polkinghorne, R. (2000). Bell-type correlations from continuous variable measurements. AIP 2000, Adelaide University, 10-15 Dec, 2000. Australia: Australian Institute of Physics.
Ralph, T. C. (2000). Quantum information with continuous variables. 2000 IQEC, Nice Acropolis, France, 10-15 September, 2000. US: IEEE.
Huntington, EH, Harb, CC, Buchler, BC and Ralph, TC (1999). Feedback control of the intensity noise of injection locked lasers. Conference on Laser Resonators II, San Jose Ca, Jan 27-29, 1999. BELLINGHAM: SPIE-INT SOC OPTICAL ENGINEERING. doi: 10.1117/12.349268
Bachor, HA, Taubman, MS, Ralph, TC, Harb, CC, White, AG and McClelland, DE (1996). Experiments and theory of laser noise: Consequences for squeezing and injection locking. ICONO 95 Conference - Atomic and Quantum Optics: High-Precision Measurements, St Petersburg Russia, Jun 27-Jul 01, 1995. BELLINGHAM: SPIE - INT SOC OPTICAL ENGINEERING. doi: 10.1117/12.239824
Bachor, HA, Ralph, TC, Taubman, MS, White, AG, Harb, CC and McClelland, DE (1995). Progress in the Search for the Optimum Light-Source - Squeezing Experiments with a Frequency Doubler. Workshop on Non-Classical Light/Satellite Meeting on Application of Techniques and Methods of Non-Classical Light - Gravitational Wave Detection, Quantum Cryptography and Quantum Computing, Corvara Italy, Jan 28-Feb 04, 1995. BRISTOL: IOP PUBLISHING LTD. doi: 10.1088/1355-5111/7/4/024