Stochastic pure state representation for open quantum systems
Quantum Physics
2016-10-03 v1
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.
Cite
@article{arxiv.1609.09636,
title = {Stochastic pure state representation for open quantum systems},
author = {Lajos Diósi},
journal= {arXiv preprint arXiv:1609.09636},
year = {2016}
}
Comments
9pp, Modern title would be: Jump quantum trajectories of stochastic unravelling all (not necessarily CP) master equations