Noise-induced transition in a quantum system
Statistical Mechanics
2007-05-23 v1
Abstract
We examine the noise-induced transition in a fluctuating bistable potential of a driven quantum system in thermal equilibrium. Making use of a Wigner canonical thermal distribution for description of the statistical properties of the thermal bath, we explore the generic effects of quantization like vacuum field fluctuation and tunneling in the characteristic stationary probability distribution functions undergoing transition from unimodal to bimodal nature and in signal-to-noise ratio characterizing the co-operative effect among the noise processes and the weak periodic signal.
Cite
@article{arxiv.cond-mat/0505552,
title = {Noise-induced transition in a quantum system},
author = {Pulak Kumar Ghosh and Debashis Barik and Deb Shankar Ray},
journal= {arXiv preprint arXiv:cond-mat/0505552},
year = {2007}
}
Comments
To appear on Physics Letters A