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arXiv:quant-ph/9809071 · Physical Review Letters

Dynamical Decoupling of Open Quantum Systems

Lorenza Viola, Emanuel H. Knill, Seth Lloyd

Published Mar 22, 1999• 1,802 citations
arXivHTMLPDF

Abstract

We propose a novel dynamical method for beating decoherence and dissipation in open quantum systems. We demonstrate the possibility of filtering out the effects of unwanted (not necessarily known) system-environment interactions and show that the noise-suppression procedure can be combined with the capability of retaining control over the effective dynamical evolution of the open quantum system. Implications for quantum information processing are discussed.

DOI
10.1103/physrevlett.82.2417

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We propose a novel dynamical method for beating decoherence and dissipation in open quantum systems. We demonstrate the possibility of filtering out the effects of unwanted (not necessarily known) system-environment interactions and show that the noise-suppression procedure can be combined with the capability of retaining control over the effective dynamical evolution of the open quantum system. Implications for quantum information processing are discussed.
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