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Stochastic representation of quantum interactions and two-lewel systems

Yu. E. Kuzovlev
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Abstract

Stochastic representation for interaction of quantum systems is formulated which allows to replace some of them by equivalent but purely commutative random sources. The formalism is applied to two-level systems interacting with Gaussian thermal bath. Strong-coupling non-Marcovian effects and besides long-living fluctuations in common susceptibility of two systems subjected to the same bath are considered.

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Yu. E. Kuzovlev. 2003-09-09. Stochastic representation of quantum interactions and two-lewel systems. https://arxiv.org/abs/cond-mat/0309225

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