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Time Evolution of tunneling and decoherence: soluble model

A. N. Salgueiro·A. F. de R. de Toledo Piza·J. G. Peixoto de Faria
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Abstract

Decoherence effects associated to the damping of a tunneling two-level system are shown to dominate the tunneling probability at short times in strong coupling regimes in the context of a soluble model. A general decomposition of tunneling rates in dissipative and unitary parts is implemented. Master equation treatments fail to describe the model system correctly when more than a single relaxation time is involved.

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A. N. Salgueiro, A. F. de R. de Toledo Piza, J. G. Peixoto de Faria. 2001-04-27. Time Evolution of tunneling and decoherence: soluble model. https://doi.org/10.1103/physreva.64.032113

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