WKB for a damped spin
chao-dyn
2009-10-31 v1 Chaotic Dynamics
Abstract
The master equation for a damped spin well known from the theory of superradiance, is written as a finite-difference equation and solved by a WKB-like method. The propagator thus obtained looks like the van Vleck propagator of a certain classical Hamiltonian system with one degree of freedom. A new interpretation is provided of the temporal broadening of initially sharp probability distributions as the analogue of the spreading of the quantum mechanical wave packet.
Cite
@article{arxiv.chao-dyn/9805018,
title = {WKB for a damped spin},
author = {Petr A. Braun and Daniel Braun and Fritz Haake},
journal= {arXiv preprint arXiv:chao-dyn/9805018},
year = {2009}
}
Comments
10 revtex pages, one eps figure; accepted for publication in EPJD