Raymond Laflamme
Mike and Ophelia Lazaridis “John von Neumann” Chair in Quantum Information Raymond Laflamme is originally from Québec City, where he studied Physics as an undergraduate at the Université Laval. After surviving Part III of the Mathematical Tripos at the University of Cambridge, he completed his PhD on aspects of general relativity and quantum cosmology in the Department of Applied Mathematics and Theoretical Physics (DAMTP) under the direction of Stephen Hawking. Laflamme and his colleague Don Page are responsible for having changed Hawking's mind on the reversal of the direction of time in a contracting universe (see Hawking’s book, A Brief History of Time). From 19881992, Laflamme held a Killam postdoctoral fellowship at UBC, and a postdoctoral fellowship at Peterhouse College, University of Cambridge. From 19922001, Dr. Laflamme worked as a research scientist at Los Alamos Research Laboratory, where his interests shifted from cosmology to quantum computing. Since the mid1990’s, Laflamme has developed theoretical approaches to quantum error correction, and has given experimental demonstrations of these techniques. In collaboration with Emmanuel Knill, Laflamme gave conditions for quantum error correcting codes, and established the faulttolerance threshold, thereby showing that quantum computing systems could be practically useful. He went on to perform the first experimental demonstration of quantum error correction. With colleagues, he has developed a blueprint for a quantum information processor using linear optics, and devised and implemented new methods to make quantum information robust against corruption in both cryptographic and computational settings. In 2001, Laflamme returned to Canada as the founding Director of the Institute for Quantum Computing (IQC) which he lead until 2017. He is an associate faculty of the Perimeter Institute For Theoretical Physics. Dr. Laflamme was the Scientific Director of QuantumWorks (20002011), and has been Director of the Quantum Information Program at the Canadian Institute for Advanced Research (CIFAR) from 2003 to 2016, and a CIFAR Fellow since 2001. Dr. Laflamme holds the Canada Research Chair in Quantum Information, the Mike and Ophelia Lazaridis “John von Neumann” Chair in Quantum Information and is a Professor in the Department of Physics and Astronomy at the University of Waterloo. Quantum information: Understanding the impact of manipulating information using the laws of quantum mechanics. Robust quantum control: Developing methods to protect quantum information against noise through quantum control and quantum error correction for quantum computing and quantum cryptography. Experimental quantum information processing: Implementing ideas and concepts of quantum information processing using nuclear magnetic resonance and developing scalable methods to control quantum systems. Physical systems for quantum information processing: Developing “blueprints” for quantum information processors using various approaches such as linear optics quantum computing (LOQC). Simulation of quantum systems: Finding ways to simulate quantum systems using quantum information processors. 

Faculty, Institute for Quantum Computing, University of Waterloo, 2002present. CSO, Universal Quantum Devices, 2010present Associate Researcher and Founding Member at Perimeter Institute, September 2001present. Professor, Department of Physics, University of Waterloo, September 2001present. Founding Director, Institute for Quantum Computing, University of Waterloo, April 20022017. Scientific Director, QuantumWorks, June 20062011. Director, Quantum Information Program at CIFAR, October 2003present. Technical staff member, Los Alamos National Laboratory, 19972001. Oppenheimer Fellow, Los Alamos National Laboratory, 19941997. PostDoctoral Fellow at Los Alamos National Laboratory, 19921994. Research Fellow at Peterhouse College, Cambridge, UK, 19901992. Killam Postdoctoral Fellow at the University of British Columbia, 19881990.
Tao Xin, Dawei Lu, Joel Klassen, Nengkun Yu, Zhengfeng Ji, Jianxin Chen, Xian Ma, Guilu Long, Bei Zeng, Raymond Laflamme. "Quantum state tomography via reduced density matrices" 2014, arXiv:1604.02046. Jun Li, Dawei Lu, Zhihuang Luo, Raymond Laflamme, Xinhua Peng, Jiangfeng Du. "Approximation of reachable sets for coherently controlled open quantum systems: Application to quantum state engineering" Physical Review A, Vol. 94, Issue 1, pp 012312, 2016 arXiv:1412.4146 Daniel K. Park, Guanru Feng, Robabeh R. Darabad, Jonathan Baugh, Raymond Laflamme. "Randomized benchmarking of quantum gates implemented by electron spin resonance" Journal of Magnetic Resonance, Vol 267, pp 6878, 2016 arXiv:1510.04779 Dawei Lu, Tao Xin, Nengkun Yu, Zhengfeng Ji, Jianxin Chen, Guilu Long, Jonathan Baugh, Xinhua Peng, Bei Zeng, R Laflamme. "Tomography is Necessary for Universal Entanglement Detection with SingleCopy Observables" Phys. Rev. Lett., Vol 116, Number 23, pp. 230501, 2016 arXiv:1511.00581 Jihyun Park, Emma McKay, Dawei Lu, Raymond Laflamme. "Simulation of anyonic statistics and its topological path independence using a sevenqubit quantum simulator" New Journal of Physics, Vol 18, pp. 043043, 2016 arXiv:1601.04721 Nayeli Azucena RodriguezBriones, Raymond Laflamme. "Achievable polarization for HeatBath Algorithmic Cooling" Phys. Rev. Lett., Vol. 116, Number 17, pp. 170501, 2016 arXiv:1412.6637 Xian Ma, Tyler Jackson, Hui Zhou, Jianxin Chen, Dawei Lu, Michael D. Mazurek, Kent A. G. Fisher, Xinhua Peng, David Kribs, Kevin J. Resch, Zhengfeng Jian, Bei Zeng, Raymond Laflamme. "Purestate tomography with expectation value of Pauli operators" Physical Review A, Vol. 93, Number 3, pp 032140, 2016 arXiv:1601.05379 Dawei Lu, Jacob D. Biamonte, Jun Li, Hang Li, Tomi H. Johnson, Ville Bergholm, Mauro Faccin, Zoltan Zimboras, Raymond Laflamme, Jonathan Baugh, Seth Lloyd. "Chiral Quantum Walks" Physical Review A, Vol. 93, Number 3, pp. 032140, 2016 arXiv:1405.6209 Jeremy Levick, Tomas JochymO'Connor, David Kribs, Raymond Laflamme, Rajesh Pereira. "Private Quantum Subsystems and Quasiorthogonal Operator Algebras" Journal of Physics AMathematical and Theoretical, Vol. 49, Number 12, pp. 125302, 2016 arXiv:1510.00939 Christopher Chamberland, Tomas JochymO'Connor, Raymond Laflamme. "Thresholds for universal concatenated quantum codes" Physical Review Letters, Vol. 117, Number 1, pp. 010501, 2016 arXiv:1603.02704 Guanru Feng, Brandon Buonacorsi, Joel J. Wallman, Franklin H. Cho, Daniel Park, Tao Xin, Dawei Lu, Jonathan Baugh, Raymond Laflamme. "Estimating the coherence of noise in quantum control of a solidstate qubit" 2016 arXiv:1603.03761 F. FillionGourdeau, S. MacLean, R. Laflamme. "Efficient state initialization by a quantum spectral filtering algorithm" 2016 and arXiv:1605.02747 Daniel K. Park, Guanru Feng, Robabeh Rahimi, Staphane Labruyere, Taiki Shibata, Shigeaki Nakazawa, Kazunobu Sato, Takeji Takui, Raymond Laflamme, Jonathan Baugh. "Hyperfine spin qubits in irradiated malonic acid: heatbath algorithmic cooling" QUANTUM INFORMATION PROCESSING Vol. 14, Number 7, pp. 24352461, 2015 arXiv:1501.00082 Daniel K. Park, Guanru Feng, Robabeh Rahimi, Jonathan Baugh, Raymond Laflamme. "Randomized benchmarking of quantum gates for optimizing microwave control in ESR", 2015 arXiv:1510.04779 Daniel K. Park, Nayeli A. RodriguezBriones, Guanru Feng, Robabeh R. Darabad, Jonathan Baugh, Raymond Laflamme. "Spin Based Heat Bath Algorithmic Cooling: Review and Prospects in Biological Magnetic Resonance; Electron Spin Quantum Computing: Electron SpinQubit Based Quantum Computing and Quantum Information Processing" Springer Science+Business Media, Vol. 31, 2015 (to appear) arXiv:1501.00952 Nayeli Azucena RodriguezBriones, Jun Li, Xinhua Peng, Tal Mor, Yossi Weinstein, Raymond Laflamme. "Comments on: Asymptotic Bound for HeatBath Algorithmic Cooling", 2015 arXiv:1506.01778 Dawei Lu, Tao Xin, Nengkun Yu, Zhengfeng Ji, Jianxin Chen, Guilu Long, Jonathan Baugh, Xinhua Peng, Bei Zeng, Raymond Laflamme. "Tomography is necessary for universal entanglement detection with singlecopy observables", 2015 arXiv:1511.00581 Dawei Lu, Aharon Brodutch, Jihyun Park, Hemant Katiyar, Tomas JochymO'Connor, Raymond Laflamme. "NMR quantum information processing in Biological Magnetic Resonance; Electron Spin Quantum Computing: Electron SpinQubit Based Quantum Computing and Quantum Information Processing" Springer Science+Business Media, Vol. 31, 2015 (to appear) arXiv:1501.01353 Dawei Lu, Hang Li, DenisAlexandre Trottier, Jun Li, Aharon Brodutch, Anthony P. Krismanich, Ahmad Ghavami, Gary I. Dmitrienko, Guilu Long, Jonathan Baugh, Raymond Laflamme. "Experimental Estimation of Average Fidelity of a Clifford Gate on a 7qubit Quantum Processor", Physical Review Letters, Vol. 114, pp. 140505, 2015 arXiv:1411.7993 Lydia Vermeyden, Xian Ma, Jonathan Lavoie, Madeleine Bonsma, Urbasi Sinha, Raymond Laflamme, Kevin Resch. "Experimental test of environmentassisted invariance", Physical Review A, Vol. 91, pp. 012120, 2015 arXiv:1408.7087 Jingfu Zhang, Daniel Burgarth, Raymond Laflamme, Dieter Suter. "Experimental implementation of quantum gates through actuator qubits" 2014, arXiv:1405.7169. Dawei Lu, Jacob D. Biamonte, Jun Li, Hang Li, Tomi H. Johnson, Ville Bergholm, Mauro Faccin, Zoltan Zimboras, Raymond Laflamme, Jonathan Baugh, Seth Lloyd. "Chiral Quantum Walks." 2014, arXiv:1405.6209. Erven C, MeyerScott E, Fisher K, et al.Experimental threephoton quantum nonlocality under strict locality conditions Nature Photonics, Vol. 8, Issue 4, pp 292296, 2014. Erven C, Ng N, Gigov N, et al.An experimental implementation of oblivious transfer in the noisy storage model Nature Communications, Vol. 5, Article 3418, 2014. Tomas JochymO'Connor, David W. Kribs, Raymond Laflamme, Sarah Plosker. "Quantum Subsystems: Exploring the Complementarity of Quantum Privacy and Error Correction." 2014, arXiv:1405.1798. Dawei Lu, Aharon Brodutch, Jun Li, Hang Li, Raymond Laflamme. "Experimental realization of postselected weak measurements on an NMR quantum processor." 2013, arXiv:1311.5890. T. Jennewein, J.P. Bourgoin, B Higgins, et al. "QEYSSAT: a mission proposal for a quantum receiver in space." Memory and Communication VII Book Series:Proceedings of SPIE,8997:89970A, 2014. Feng G, Long G, Laflamme R.Experimental simulation of anyonic fractional statistics with an NMR quantuminformation processor Physical Review A, Vol. 88, Issue 2, Article 022305, 2013. JochymO'Connor T, Kribs DW, Laflamme R, et al.Private Quantum Subsystems Physical Review Letters, Vol. 111, Issue 3, Article 030502, 2013. D. Rideout, T. Jennewein, G. AmelinoCamelia, T. F. Demarie, B. L. Higgins, A. Kempf, A. Kent, R. Laflamme, X. Ma, R. B. Mann, E. MartinMartinez, N. C. Menicucci, J. Moffat, C. Simon, R. Sorkin, L. Smolin, and D. R. Terno. "Fundamental quantum optics experiments conceivable with satellitesreaching relativistic distances and velocities." Classical and Quantum Gravity, 29:224011, 2012. B. Criger, G. Passante, D. Park, and R. Laflamme. "Recent advances in nuclear magnetic resonance quantum information processing." Philosophical Transactions of the Royal Society A: Mathematical, physical, and engineering sciences, 370(1976):462035, 2012. J. Zhang, R. Laflamme, and D. Suter. "Experimental Implementation of Encoded Logical Qubit Operations in a Perfect Quantum Error Correcting Code." Physical Review Letters, 109:100503, 2012. O. Moussa, M. P. da Silva, C. A. Ryan, and R. Laflamme, "Practical Experimental Certification of Computational Quantum Gates Using a Twirling Procedure." Physical Review Letters, 109:070504, 2012. J. Zhang, M.H. Yung, R. Laflamme, A. AspuruGuzik, and J. Baugh. "Digital quantum simulation of the statistical mechanics of a frustrated magnet." Nature Communications, 3:880, 2012. B. Criger, O. Moussa, and R. Laflamme. "Quantum error correction with mixed ancilla qubits." Physical Review A, 85:044302, 2012. G. Passante, O. Moussa, and R. Laflamme. "Measuring geometric quantum discord using one bit of quantum information." Physical Review A, 85:032325, 2012. Y. Zhang, C. A. Ryan, R. Laflamme, and J. Baugh. “Coherent control of two nuclear spins using the anisotropic hyperfine interaction.” 2011, arXiv:1104.0275. G. Passante, O. Moussa, D. A. Trottier, and R. Laflamme. “Experimental detection of nonclassicalcorrelations in mixed state quantum computation.” 2011, arXiv:1105.2262. J. Zhang, T.Z. Wei, and R. Laflamme. “Experimental quantum simulation of entanglement in manybody systems.” Physical Review Letters 107: 010501, 2011, arXiv:1104.0275. A. M. Souza, J. Zhang, C. M. Ryan, and R. Laflamme. “Experimental magic state distillation.” Nature Communications 2:169, 2011, arXiv:1103.2178v1. C. Erven, D. Hamel, K. Resch, R. Laflamme, and G. Weihs. “Entanglement based quantum key distribution using a bright Sagnac entangled photon source.” Quantum Communication and Quantum Networking. Springer, Berlin, 2010. F. M. Cucchietti, J.F. Zhang, F. C. Lombardo, P. I. Villar, and R. Laflamme. “Geometric phase with nonunitary evolution in presence of a quantum critical bath.” Physical Review Letters, 105:240406, 2010 and arXiv:1006.1468. U. Sinha, C. Couteau, T. Jennewein, R. Laflamme, and G. Weihs. “Ruling out multiorder interference in quantum mechanics.” Science, 329(418421), 2010. O. Moussa, C. A. Ryan, D. G. Cory, and R. Laflamme. “Testing contextuality on quantum ensembles with one clean qubit.” Physical Review Letters, 104 (160501), 2010. T. D. Ladd, F. Jelezko, R. Laflamme, Y. Nakamura, C. Monroe, and J. L. O’Brien. “Quantum computers.” Nature, 464(7285):45–53, 2010. G. Passante, O. Moussa, C. A. Ryan, and R. Laflamme. “Experimental approximation of the Jones polynomial with DQC1.” Physical Review Letters, 103(250501), 2009. J. Zhang, M. Ditty, D. Burgarth, C. A. Ryan, C. M. Chandrashekar, M. Laforest, O. Moussa, J. Baugh, and R. Laflamme. “Quantum data bus in dipolar coupled nuclear spin qubits.” Physical Review A 80(012316), 2009. C. Erven, X. Ma, R. Laflamme, and G. Weihs. “ Entangled quantum key distribution with a biased basis choice.” New Journal of Physics, (11):045025, 2009. C.A. Ryan, M. Laforest, and R. Laflamme. “Randomized benchmarking of single and multiqubit control in liquidstate nmr quantum information processing.” Science 11(013034), 2009. C. M. Chandrashekar, R. Srikanth, and R. Laflamme. “Optimizing the discrete time quantum walk using a su(2) coin.” Physical Review A, 77:032326, 2008. C.A. Ryan, M. Laforest, and R. Laflamme. “Randomized benchmarking of single and multiqubit control in liquidstate NMR quantum information processing.” 2008. J. Zhang, F. M. Cucchietti, C. Chandrashekar, M. Laforest, C. A. Ryan, M. Ditty, A. Hubbard, J. K. Gamble, and R. Laflamme. “Direct observation of quantum criticality in Ising spin chains.” Physical Review A 79, 012305 (2009). C. Erven, C. C. Couteau, R. Laflamme, and G. Weihs. “Entangled quantum key distribution over two freespace optical links.” 2008. E. Bocquillon, C. Couteau, M. Razavi, R. Laflamme, and G. Weihs. “Coherence measures for heralded singlephoton sources.” 2008. C. A. Ryan, C. Negrevergne, M. Laforest, E. Knill, and R. Laflamme. “Liquidstate nuclear magnetic resonance as a testbed for developing quantum control methods.” Physical Review A, 78:012328, 2008. C. A. Ryan, O. Moussa, J. Baugh, and R. Laflamme. “Spin based heat engine: Demonstration of multiple rounds of algorithmic cooling.” Physical Review Letters, 100:140501, 2008. 