Stochastic evolution of finite level systems: classical vs. quantum
Quantum Physics
2013-04-16 v1
Abstract
Quantum dynamics of the density operator in the framework of a single probability vector is analyzed. In this framework quantum states define a proper convex quantum subset in an appropriate simplex. It is showed that the corresponding dynamical map preserving a quantum subset needs not be stochastic contrary to the classical evolution which preserves the entire simplex. Therefore, violation of stochasticity witnesses quantumness of evolution.
Cite
@article{arxiv.1302.1330,
title = {Stochastic evolution of finite level systems: classical vs. quantum},
author = {D. Chruściński and V. I. Man'ko and G. Marmo and F. Ventriglia},
journal= {arXiv preprint arXiv:1302.1330},
year = {2013}
}
Comments
8 pages