Dynamical decoupling of open quantum systems. (English) Zbl 1042.81524

Summary: 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.


81P99 Foundations, quantum information and its processing, quantum axioms, and philosophy
81V99 Applications of quantum theory to specific physical systems
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