G. Amato, H.-P. Breuer and B. Vacchini

Microscopic modelling of general time-dependent quantum Markov processes
Phys. Rev. A vol. 99 030102(R) (2019)

Abstract:

Master equations are typically adopted to describe the dynamics of open quantum systems. Such equations are either in integro-differential or in time-local form, with the latter class more frequently adopted due to the simpler numerical methods developed to obtain the corresponding solution. Here we show that any time-local master equation with positive rates in the generator, i.e. any CP divisible quantum process, admits a microscopic model whose reduced dynamics is well described by the given equation.

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