Positive Quantum Brownian Evolution
Quantum Physics
2015-06-05 v1
Abstract
Using the independent oscillator model with an arbitrary system potential, we derive a quantum Brownian equation assuming a correlated total initial state. Although not of Lindblad form, the equation preserves positivity of the density operator on a restricted set of initial states.
Cite
@article{arxiv.1206.4269,
title = {Positive Quantum Brownian Evolution},
author = {Allan Tameshtit and J. E. Sipe},
journal= {arXiv preprint arXiv:1206.4269},
year = {2015}
}