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arXiv · 1609.09636

Stochastic pure state representation for open quantum systems

Lajos Diósi
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Abstract

We show that the usual master equation formalism of Markovian open quantum systems is completely equivalent to a certain state vector formalism. The state vector of the system satisfies a given frictional Schr\"odinger equation except for random instant transitions of discrete nature. Hasse's frictional Hamiltonian is recovered for the damped harmonic oscillator.

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Lajos Diósi. 2016-09-30. Stochastic pure state representation for open quantum systems. https://doi.org/10.1016/0375-9601(86)90692-4

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