Lorenza Viola's Research Group

Department of Physics and Astronomy, Dartmouth College

Theoretical Quantum Information Science

Recent Publications and Preprints

2012

  1. Deng, S., Ortiz, G., & Viola, L. (2012), Majorana modes in time-reversal invariant s-wave topological superconductors". Phys. Rev. Lett. 108, 036803 APS [URL]
  2. Ticozzi, F., & Viola, L. (2011), "Stabilizing entangled states with quasi-local quantum dynamical semigroups" to appear in Phil. Trans. R. Soc. A [URL]

2011

  1. Hayes, D., Khodjasteh, K., Viola, L. , & Biercuk, M. J. (2011), "Reducing sequencing complexity in dynamical quantum error suppression by Walsh modulation". Phys. Rev. A 84, 062323 APS [URL]
  2. Khodjasteh, K., Dobrovitski, V. V., & Viola, L. (2011), "Pointer states via engineered dissipation ". Phys. Rev. A 84, 022336 APS [URL]
  3. Ramanathan, C., Cappellaro, P., Viola, L., & Cory, D. (2011), Experimental characterization of coherent magnetization transport in a one-dimensional spin system". New J. Phys. 13, 103015 [URL]
  4. Ticozzi, F., Lucchese, R., Cappellaro, P., & Viola, L. (2011), "Hamiltonian Control of Quantum Dynamical Semigroups: Stabilization and Convergence Speed". to appear in IEEE Trans. Autom. Control [URL]
  5. Deng, S., Ortiz, G., & Viola, L. (2011), "Dynamical critical scaling and effective thermalization in quantum quenches: the role of the initial state". Phys. Rev. B 83, 094304 APS [URL]
  6. Cappellaro, P., Viola, L., & Ramanathan, C. (2011), "Coherent state transfer via highly mixed quantum spin chains". Phys. Rev. A 83, 032304 [URL]

    7. 2010

    1. Khodjasteh, K., Erdelyi, T., & Viola, L. (2010), "Limits on Preserving Quantum Coherence using Multi-Pulse Control". Phys. Rev. A 83, 020305 (R) APS [URL]
    2. Erdelyi, T., Khodjasteh, K., & Viola, L. (2010), "The size of exponential sums on intervals of the real line". arXiv:1006.4323, to appear in Constructive Approximations [URL]
    3. Blume-Kohout, R., Ng, H.K., Poulin, D. & Viola, L. (2010), "Information preserving structures: A general framework for quantum zero-error information". 82, 062306 [URL]
    4. Khodjasteh, K., Lidar D. A., & Viola, L. (2010), "Arbitrarily Accurate Dynamical Control in Open Quantum Systems". Phys. Rev. Lett. 104, pp. 090501. APS [URL]
    5. Brown W. G. & Viola, L. (2010), "Exact convergence rates for arbitrary statistical moments of random quantum circuits". Phys. Rev. Lett. 104, pp. 250501 APS [URL]
    6. Ticozzi F. & Viola, L. (2010), "Quantum information encoding, protection, and correction from trace-norm isometries". Phys. Review A 81, pp. 032313. APS [URL]
    7. Hodgson T. E., Viola L., & D'Amico I. (2010), "Towards optimized suppression of dephasing in systems subject to pulse timing constraints". Phys. Review A 81, pp. 062321. APS [URL]

    2009

    1. Khodjasteh, K. & Viola, L. (2009), "Dynamical Quantum Error Correction of Unitary Operations with Bounded Controls". Phys. Review A 80, pp. 032314. APS [URL]
    2. Ticozzi, F. & Viola, L. (2009), "Analysis and synthesis of attractive quantum Markovian dynamics". Automatica 45, pp. 2002 [URL]
    3. Khodjasteh, K. & Viola, L. (2009), "Dynamically Error-Corrected Gates for Universal Quantum Computation" Phys. Rev. Lett. 102, pp. 080501. APS [URL]
    4. Deng S., Ortiz G. & Viola, L.(2009), "Dynamical non-ergodic scaling in continuous finite-order quantum phase transitions" Euro. Phys. Lett. 84, pp. 67008. EPS. [URL]
    5. Zhang W., Cappellaro P., Antler N., Pepper B., Cory D. G., Dobrovitski, V. V., Ramananthan C., & Viola, L., (2009), "NMR multiple quantum coherences in quasi-one-dimensional spin systems: Comparison to ideal spin-chain dynamics," Phys. Rev. A 80, pp. 052323. APS [URL]
    6. S. Deng, G. Ortiz, & Viola, L., (2009) "Anomalous non-ergodic scaling in adiabatic multicritical quantum quenches," Phys. Rev. B 80, Rapid Communication, pp. 241109. APS [URL]

    2008

    1. Hodgson, T. E., Viola, L. & D'Amico I. (2008), "Decoherence-Protected Storage of Exciton Qubits Through Ultrafast Multipulse Control", Phys. Rev. B 78(16), pp. 165311. APS. [URL]
    2. Blume-Kohout, R., Ng, H.K., Poulin, D. & Viola, L. (2008), "Characterizing the Structure of Preserved Information in Quantum Processes", Physical Review Letters. 100(3), pp. 030501. APS. [URL]
    3. Brown, W.G., Santos, L.F., Starling, D. & Viola, L. (2008), "Quantum chaos, delocalization, and entanglement in disordered Heisenberg models", Physical Review E. 77(2), pp. 21106. APS. [URL]
    4. Brown, W.G., Weinstein, Y.S. & Viola, L. (2008), "Quantum pseudorandomness from cluster-state quantum computation", Physical Review A (Atomic, Molecular, and Optical Physics). 77(4), pp. 040303. APS. [URL]
    5. Deng, S., Ortiz, G. & Viola, L. (2008), "Generalized entanglement in static and dynamic quantum phase transitions". [URL]
    6. Santos, L.F. & Viola, L. (2008), "Advantages of randomization in coherent quantum dynamical control", New Journal of Physics. 10(8), pp. 083009 (36pp). [URL]
    7. Ticozzi, F. & Viola, L. (2008), "Quantum Markovian Subsystems: Invariance, Attractivity, and Control", Automatic Control, IEEE Transactions on., Oct. , 2008. 53(9), pp. 2048-2063.
    8. Zhang, W., Konstantinidis, N.P., Dobrovitski, V.V., Harmon, B.N., Santos, L.F. & Viola, L. (2008), "Long-time electron spin storage via dynamical suppression of hyperfine-induced decoherence in a quantum dot", Physical Review B. 77(12), pp. 125336. APS. [URL]

    2007

    1. Boixo, S., Viola, L. & Ortiz, G. (2007), "Generalized coherent states as preferred states of open quantum systems", Europhysics Letters. 79(4), pp. 40003 (5pp). [URL]
    2. Mandilara, A. & Viola, L. (2007), "Nilpotent polynomial approach to four-qubit entanglement", Journal of Physics B: Atomic, Molecular and Optical Physics. 40(9), pp. S167. Institute of Physics Publishing. [URL]
    3. Viola, L. & Barnum, H. (2007), "Entanglement and Subsystems, Entanglement beyond Subsystems, and All That". [URL]
    4. Viola, L. & Brown, W.G. (2007), "Generalized entanglement as a framework for complex quantum systems: purity versus delocalization measures", Journal of Physics A: Mathematical and Theoretical. 40(28), pp. 8109-8125. [URL]
    5. Zhang, W., Dobrovitski, V.V., Santos, L.F., Viola, L. & Harmon, B.N. (2007), "Suppression of electron spin decoherence in a quantum dot", Journal of Modern Optics. 54(16), pp. 2629-2640. Taylor & Francis. [URL]
    6. Zhang, W., Dobrovitski, V.V., Santos, L.F., Viola, L. & Harmon, B.N. (2007), "Dynamical control of electron spin coherence in a quantum dot: A theoretical study", Physical Review B (Condensed Matter and Materials Physics). 75(20), pp. 201302. APS. [URL]

    2006

    1. Mandilara, A., Akulin, V. M., Smilga, A. V. & Viola, L. (2006), "Quantum entanglement via nilpotent polynomials", Physical Review A. Vol. 74(2), 22331. [URL]
    2. Montangero, S. & Viola, L. (2006), "Multipartite entanglement generation and fidelity decay in disordered qubit systems", Physical Review A. Vol. 73(4), 40302. [URL]
    3. Santos, L. F. & Viola, L. (2006), "Enhanced Convergence and Robust Performance of Randomized Dynamical Decoupling", Physical Review Letters. Vol. 97(15), 150501. [URL]
    4. Somma, R., Barnum, H., Knill, E., Ortiz, G. & Viola, L. (2006), "Generalized Entanglement and Quantum Phase Transitions", Recent Progress in Many-Body Theories-V9: Proceedings of the 12th International Conference., [URL]
    5. Ticozzi, F. & Viola, L. (2006), "Single-bit feedback and quantum-dynamical decoupling", Physical Review A. Vol. 74(5), 52328. [URL]
    6. Viola, L. & Santos, L. F. (2006), "Randomized dynamical decoupling techniques for coherent quantum control", Journal of Modern Optics. Vol. 53(16), 2559-2568. [URL]
    7. Weinstein, Y. S. & Viola, L. (2006), "Generalized entanglement as a natural framework for exploring quantum chaos", Europhysics Letters. Vol. 76(5), 746-752. [URL]

    2005

    1. Boulant, N., Viola, L., Fortunato, E. M. & Cory, D. G. (2005), "Experimental Implementation of a Concatenated Quantum Error-Correcting Code", Physical Review Letters. Vol. 94(13), 130501. [URL]
    2. Ortiz, G., Somma, R., Barnum, H., Knill, E. & Viola, L. (2005), "Entanglement as an Observer-Dependent Concept: an Application to Quantum Phase Transitions", Condensed Matter Theories. Vol. 19, 297. [URL]
    3. Santos, L. & Viola, L. (2005), "Dynamical control of qubit coherence: Random versus deterministic schemes", Physical Review A. Vol. 72(6), 62303. [URL]
    4. Viola, L. (2005), "Randomized control of open quantum systems", CDC-ECC '05. 44th IEEE Conference on., In Decision and Control, 2005 and 2005 European Control Conference. [URL]
    5. Viola, L. & Knill, E. (2005), "Random Decoupling Schemes for Quantum Dynamical Control and Error Suppression", Physical Review Letters. Vol. 94(6), 60502. [URL]

    2004

    1. Barnum, H., Knill, E., Ortiz, G., Somma, R. & Viola, L. (2004), "A Subsystem-Independent Generalization of Entanglement", Physical Review Letters. Vol. 92(10), 107902. [URL]
    2. Faoro, L. & Viola, L. (2004), "Dynamical Suppression of 1/f Noise Processes in Qubit Systems", Physical Review Letters. Vol. 92(11), 117905. [URL]
    3. Somma, R., Ortiz, G., Barnum, H., Knill, E. & Viola, L. (2004), "Nature and measure of entanglement in quantum phase transitions", Phys. Rev. A., Oct, 2004. Vol. 70(4), 042311. [URL]
    4. Viola, L. (2004), "Advances in decoherence control", Journal of Modern Optics. Vol. 51(16), 2357-2367. [URL]
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