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Optimized dynamical decoupling in a model quantum memory

Author

Listed:
  • Michael J. Biercuk

    (Boulder, Colorado, 80305, USA
    Georgia Institute of Technology, Atlanta, Georgia, 30332, USA)

  • Hermann Uys

    (Boulder, Colorado, 80305, USA
    Council for Scientific and Industrial Research, Pretoria, 0001, South Africa)

  • Aaron P. VanDevender

    (Boulder, Colorado, 80305, USA)

  • Nobuyasu Shiga

    (Boulder, Colorado, 80305, USA
    Present address: NICT, Tokyo, Japan.)

  • Wayne M. Itano

    (Boulder, Colorado, 80305, USA)

  • John J. Bollinger

    (Boulder, Colorado, 80305, USA)

Abstract

Quantum error suppression Quantum systems are subject to random phase errors that can dramatically affect the fidelity of a desired quantum operation or measurement. Quantum error correction techniques have been developed to facilitate quantum information processing, but the resource requirements are large. This motivates a search for alternative strategies to suppress dephasing in quantum systems. Now Michael Biercuk and colleagues experimentally validate the use of a technique known as dynamical decoupling using optimized pulse sequences to suppress qubit error rates. They find novel pulse sequences that suppress errors by orders of magnitude compared to other existing sequences, and the technique should be applicable across a variety of qubit technologies.

Suggested Citation

  • Michael J. Biercuk & Hermann Uys & Aaron P. VanDevender & Nobuyasu Shiga & Wayne M. Itano & John J. Bollinger, 2009. "Optimized dynamical decoupling in a model quantum memory," Nature, Nature, vol. 458(7241), pages 996-1000, April.
    • Handle: RePEc:nat:nature:v:458:y:2009:i:7241:d:10.1038_nature07951
    DOI: 10.1038/nature07951
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