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- David Cory

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Institute for Quantum Computing (IQC)

Area of Research:

Phone: x37307

Dr. Cory is Professor of Chemistry at the University of Waterloo and researcher with the university's Institute for Quantum Computing. He is the CERC's chair in Quantum Information Processing. He is an experimental physicist working to develop spin-based quantum processors.

The aim of our group is to design, fabricate, and deploy quantum devices. We look to make quantum sensors and actuators that are coherent, controllable and have practical applications. To achieve this we explore hybrid quantum technologies that combine electron and nuclear spin with transport, optics and superconducting systems. Near term applications are focused on achieving molecule magnetic resonance spectroscopy of molecularly thick films.

The program demands advances in the theory and practice of coherent control. In particular we are interested in efficiently characterizing errors and then correcting/avoiding them. A new avenue is to gain an understanding of systems engineering in the quantum setting. This is essential for integrating our quantum devices into more complex systems.

The work is split between PI, IQC (where most of the labs are) and NIST (where we have a quantum information theory enhanced neutron interferometer lab).

- 2012- present Associate of the National Institute of Standards and Technology
- 2012- present Member, Advisory Board of the Shanghai Institute of Complex Physics
- 2011- present Member of the Scientific Advisory Committee for Brockhouse Institute
- 2010 - present University of Waterloo Professor of Chemistry
- 2010 - present Chair of the Scientific Advisory Committee CIFAR's program in Quantum Information
- 2010 - present Canada Research Chairs Canadian Excellence Research Chair in Quantum Devices
- 1992 - 2010 Massachusetts Institute of Technology Professor of Nuclear Science and Engineering

- Canadian Excellence Research Chair in Quantum Information Processing

- O. Benningshof, H. Mohebbi, I. Taminiau, G. Miao, and D. G. Cory, Superconducting microstrip resonators for pulsed ESR of thin films, Journal of Magnetic Resonance, 230, 2013, 84-87
- M. Cassidy, C. Ramanathan, D. G. Cory, J. W. Ager, and C. M. Marcus, Radical-free dynamic nuclear polarization using electronic defects in silicon, Physical Review B, 87, 2013, 161306
- E. Magesan, D. Puzzuoli and D. G. Cory, Honest Modeling of Quantum Noise for Efficient Testing of Fault-Tolerant Circuits, Physical Reviews A, 87, 2013, 012324
- M. Abutaleb, D. Pushin, M. HUber, C. Majkrzak, M. Arif, and D.G. Cory, Design of remnant magnetization FeCo V films as compact, heatless neutron spin rotators, 2012, Applied Physics Letters, 101, 182404
- C. Ferrie, C. Granade, N. Weibe, D.G. Cory, Robust Online Hamiltonian Finding, New Journal of Physics, 2012, 14, 103013
- Granade, C.E. and Ferrie, C. and Wiebe, N. and Cory, DG, Robust Online Hamiltonian Learning, New Journal of Physics, 2012, 14, 103013.**
- Yan, F. and Bylander, J. and Gustavsson, S. and Yoshihara, F. and Harrabi, K. and Cory, D.G. and Orlando, T.P. and Nakamura, Y. and Tsai, J.S. and Oliver, W.D., Spectroscopy of low-frequency noise and its temperature dependence in a superconducting qubit, Physical Review B, 85, 2012, 174521
- T.W. Borneman, C. Granade, and D.G. Cory, Parallel Information Transfer in a Multi-Node Quantum Processor, Physical Review Letters, 108, 2012, 140502
- Gustavsson, S. and Bylander, J. and Yan, F. and Forn-Diaz, P. and Bolkhovsky, V. and Braje, D. and Fitch, G. and Harrabi, K. and Lennon, D. and Miloshi, J. and others, Driven dynamics and rotary echo of a qubit tunably coupled to a harmonic oscillator, Physical Review Letters, 108, 2012, 170503
- T. Borneman and D. G. Cory, Bandwidth Limited Control and Ring-down Suppression in High-Q Resonators, 2012, Journal of Magnetic Resonance, 225, 120-129.
- F. Yan, S. Gustavsson, J. Bylander, X. Jin, F. Yoshihara, D. G. Cory, T. Orlando, Y. Nakamura, and W. Oliver, T1Ï experiment as a noise spectrum analyzer during driven evolution, 2012, Nature Physics
- T.W. Borneman, C.Granade, and D.G. Cory, Experimental Characterization of Coherent Magnetization Transport on a One-Dimensinal Spin System, New Journal of Physics, 13, 2011, 103015
- Pushin, DA and Huber, MG and Arif, M. and Cory, DG, Experimental Realization of Decoherence-Free Subspace in Neutron Interferometry, Physical Review Letters, 107, 2011, 150401
- J. Bylander, S. Gustavsson, F. Yan, F. Yoshihara, K. Harrabi, G. Fitch, D.G. Cory, Noise Spectroscopy through Dynamical Decoupling with a Superconducting Flux Qubit, Nature Physics, 7, 2011, 565-570
- T. Hopper, S. Mandal, D.G. Cory, M. Hurlimann and Y.O. Song, Low-Frequency NMR with a Non-Resonant Circuit, Journal of Magnetic Resonance, 210, 2011, 69-74
- A. Dementyev, D.G. Cory, C. Ramanathan, High-field Overhauser Dynamic Nuclear Polarization in Simicon Below the Metal-Insulator Transition, Journal of Chemical Physics, 134, 2011, 154511
- C. Altafini, P. Cappellaro, D.G. Cory, Feedback Schemes for Radiation Damping Suppression in NMR: A Control-Theoretic Perspective, System & Control Letters, 59, 2010, 782-786
- T.W. Bornemen, M.D. Hurlimann, and D.G. Cory, Application of Optimal Control to CPMG Refocusing Pulse Design, Journal of Magnetic Resonance, 207, 2010, 220-233
- C.A. Ryan, J.S. Hodges, and D.G. Cory, Robust decoupling techniques to extend quantum coherence in diamond, Physical Review Letters, 105, 2010, 200402
- Cecilia C. Lopez, Marcus Silva, Joseph Emerson, and D. G. Cory, Using an experimentally faulty Quantum Information Processor to characterize its own performance, Physical Review A, 2010.
- O. Moussa, C. A. Ryan, D. G. Cory and R. Laflamme, Testing Contextuality on Quantum Ensembles with One Clean Qubit, Physical Review Letters, 2010, 104, 160501.
- Lopez CC, Bendersky A, Paz JP, and D. G. Cory, Progress Toward Scalable Tomography of Quantum Maps Using Twirling-Bases Methods and Information Hierarchies, Physical Review A, 2010, 81, 062113.
- Gerardi, C. and Cory, D. and Buongiorno, J. and Hu, L.W. and McKrell, T., Nuclear magnetic resonance-based study of ordered layering on the surface of alumina nanoparticles in water, Applied Physics Letters, 95, 2009, 253104.
- J. W. Aptekar, M. C. Cassidy, A.C. Johnson, R. A. Barton, M. Y. Lee, C. Vo, M.N. Anahter, S. N. Bhatia, C. Ramanathan, D. G. Cory, A. L. Hill, R. W. Mair, M. S. Rosen, R. L. Walsworth, and C. M. Marcus, Hyperpolarized Long-T1 Silicon Nanoparticles for Magnetic Resonance Imaging, ACS, Nano, 2009, 3, 4003-4008.
- C. Gerardi, D. G. Cory, J. Buongiorno, L-W. Hu, T. McKrell, Nuclear Magnetic Resonance-Based Study of Ordered Layering on the Surface of Alumina Nanoparticles in Water, Applied Physics Letters, 2009, 95, 253104.
- D. A. Pushin, M. Arif and D. G. Cory, Decoherence-free Neutron Interferometry, Physical Review A, 2009, 79, 05636.
- C. C. Lopez, B. L'evi, D. G. Cory, Error Characterization in Quantum Information Processing: A Protocol for Analyzing Spatial Correlations and its Experimental Implementation, Physical Review A, 79, 2009, 042328
- W. Zhang, P. Cappellaro, N. Antler, B Pepper, D. G. Cory, V. Dobrovitski, C. Ramanathan, and L. Viola, NMR multiple quantum coherences in quasi-one-dimensional spin systems: Comparison with ideal spin-chain dynamics, Physical Review A, 2009, 80, 052323.
- L. Jiang, J. S. Hodges, J. R. Maze, P. Maurer, J. M. Taylor, D. G. Cory, P. R. Hemmer, R. L. Walsworth, A. Yacoby, A. S. Zibrov, M. D. Lukin, Repatitive Readout of Single Electron Spin via Quantum Logic with Nuclear Spin Ancillae, Science, 2009, 326, 267-272.
- High-Fidelity Control in High-Q Resonators, Borneman, T.W. and Cory, D.G., arXiv: 1207.1139v1
- Granade, C.E. and Ferrie, C. and Wiebe, N. and Cory, DG, Robust Online Hamiltonian Learning, arXiv: 1207.1655
- Magesan, E. and Puzzuoli, D. and Granade, C.E. and Cory, D.G., Modeling quantum noise for efficient testing of fault-tolerant circuits, arXiv: 1206.5407
- Cassidy, MC and Ramanathan, C. and Cory, DG and Ager, JW and Marcus, CM, Radical-free dynamic nuclear polarization using electronic defects in silicon, arXiv: 1206.5125
- Wood, C.J. and Biamonte, J.D. and Cory, D.G., Tensor networks and graphical calculus for open quantum systems, arXiv: 1111.6950
- Hincks, I.N. and Cory, D.G. and Ramanathan, C., Equivalent Hamiltonians for State to State Transfer in the Case of Partial Quantum Control, arXiv: 1111.0944
- Ferrie, C. and Granade, C.E. and Cory, DG, Adaptive Hamiltonian Estimation Using Bayesian Experimental Design, arXiv: 1111.0935
- Ferrie, C. and Granade, C.E. and Cory, DG, How to best sample a periodic probability distribution, or on the accuracy of Hamiltonian finding strategies, arXiv: 1110.3067
- Experimental Demonstration of Localization on a Quantum Information Processor, Michael K. Henry, Joseph Emerson, David G. Cory, arxiv:quant-ph/512204
- A solid-state NMR three-qubit homonuclear system for quantum information processing: control and characterization, Jonathan Baugh, Osama Moussa, Colm A. Ryan, Raymond Laflamme, Chandrasekhar Ramanathan, Timothy F. Havel, David G. Cory, arxiv:quant-ph/510115
- NMR Quantum Information Processing and Entanglement, Raymond Laflamme, David G. Cory, Camille Negrevergne, Lorenza Viola, arxiv:quant-ph/110029
- Bylander, J. and Yan, F. and Gustavsson, S. and Yoshihara, F. and Cory, D.G. and Nakamura, Y. and Oliver, W.D., Very-low-frequency spectroscopy of both flux and tunnel-coupling noise in a flux qubit, Bulletin of the American Physical Society, 2012
- Yan, F. and Gustavsson, S. and Bylander, J. and Yoshihara, F. and Nakamura, Y. and Cory, D. and Oliver, W., $ T\_ $\{$1$\backslash$ rho$\}$ $ experiment as a noise spectrum analyzer, Bulletin of the American Physical Society, 57, 2012
- Ramanathan, C. and Lee, J. and Cappellaro, P. and Viola, L. and Cory, D., Experimental characterization of coherent dynamics in a spin chain, Bulletin of the American Physical Society, 57, 2012
- Gustavsson, S. and Bylander, J. and Yan, F. and Forn-Diaz, P. and Bolkhovsky, V. and Braje, D. and Spector, S. and Turek, B. and Welander, P.B. and Yoshihara, F. and others, Driven dynamics of a qubit tunably coupled to a harmonic oscillator, Bulletin of the American Physical Society, 2012
- Gumann, P. and Scherschligt, J. and Hussey, D. and Jacobson, D. and Cory, D. and Taminiau, I., 3He-4He liquid mixtures investigated by neutron imaging technique at low temperatures, Bulletin of the American Physical Society, 57, 2012

- PIRSA:12030022, Explorations in Quantum Information - Lecture 15, 2012-03-30, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030021, Explorations in Quantum Information - Lecture 14, 2012-03-29, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030020, Explorations in Quantum Information - Lecture 13, 2012-03-28, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030019, Explorations in Quantum Information - Lecture 12, 2012-03-27, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030018, Explorations in Quantum Information - Lecture 11, 2012-03-26, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030015, Explorations in Quantum Information - Lecture 10, 2012-03-23, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030014, Explorations in Quantum Information - Lecture 9, 2012-03-22, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030013, Explorations in Quantum Information - Lecture 8, 2012-03-21, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030012, Explorations in Quantum Information - Lecture 7, 2012-03-20, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030011, Explorations in Quantum Information - Lecture 6, 2012-03-19, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030008, Explorations in Quantum Information - Lecture 5, 2012-03-16, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030007, Explorations in Quantum Information - Lecture 4, 2012-03-15, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030006, Explorations in Quantum Information - Lecture 3, 2012-03-14, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030005, Explorations in Quantum Information - Lecture 2, 2012-03-13, 11/12 PSI - Explorations in Quantum Information
- PIRSA:12030004, Explorations in Quantum Information - Lecture 1, 2012-03-12, 11/12 PSI - Explorations in Quantum Information

©2012 Institut Périmètre de Physique Théorique