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Initial Decoherence of Open Quantum Systems

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Abstract

We present a new short-time approximation scheme for evaluation of decoherence. At low temperatures, the approximation is argued to apply at intermediate times as well. It then provides a tractable approach complementary to Markovian-type approximations, and appropriate for evaluation of deviations from pure states in quantum computing models.

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Authors and Affiliations

  1. Center for Quantum Device Technology, Clarkson University, Potsdam, New York, 13699-5820

    Vladimir Privman

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  1. Vladimir Privman
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Privman, V. Initial Decoherence of Open Quantum Systems. Journal of Statistical Physics 110, 957–970 (2003). https://doi.org/10.1023/A:1022180407107

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