Damped Quantum Interference using Stochastic Calculus
Quantum Physics
2015-06-26 v1
Abstract
It is shown how the phase-damping master equation, either in Markovian and nonMarkovian regimes, can be obtained as an averaged random unitary evolution. This, apart from offering a common mathematical setup for both regimes, enables us to solve this equation in a straightforward manner just by solving the Schrodinger equation and taking the stochastic expectation value of its solutions after an adequate modification. Using the linear entropy as a figure of merit (basically the loss of quantum coherence) the distinction of four kinds of environments is suggested.
Cite
@article{arxiv.quant-ph/0208176,
title = {Damped Quantum Interference using Stochastic Calculus},
author = {D. Salgado and J. L. Sanchez-Gomez},
journal= {arXiv preprint arXiv:quant-ph/0208176},
year = {2015}
}
Comments
7 pages, 1 ps figure