The dynamics of a thermal non-equilibrium anharmonic oscillator
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
We propose an non-standard method to calculate non-equilibrium physical observables. Considering the generic example of an anharmonic quantum oscillator, we take advantage of the fact that the commutator algebra of second order polynomials in creation/annihilation operators closes. We solve the von~Neumann equation for the density-operator exactly in the mean field approximation and study the time evolution of the particle number and the expectation value < X^2 > .
Cite
@article{arxiv.hep-ph/9509302,
title = {The dynamics of a thermal non-equilibrium anharmonic oscillator},
author = {Herbert Nachbagauer},
journal= {arXiv preprint arXiv:hep-ph/9509302},
year = {2007}
}
Comments
6 pages, REVTeX, no figures