Dynamical Decoupling of Open Quantum Systems

Authors: Lorenza Viola, Emanuel Knill, Seth Lloyd

Phys.Rev.Lett.82:2417-2421,1999
4 pages, no figures; Plain ReVTeX. Final version to appear in Physical Review Letters

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.

Submitted to arXiv on 24 Sep. 1998

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