Quantum Dissipation
Nuclear Theory
2007-05-23 v1
Abstract
We address the question of the microscopic origin of dissipation in collective motion of a quantum many--body system in the framework of a parametric random matrix approach to the intrinsic dynamics. We show that the fluctuation--dissipation theorem is generally violated and, moreover, energy diffusion has a markedly non--Gaussian character and the corresponding distribution has very long tails. Such features do not support a Langevin or Fokker--Planck approach to dissipation in collective nuclear motion.
Cite
@article{arxiv.nucl-th/9507034,
title = {Quantum Dissipation},
author = {Aurel Bulgac and Giu Do Dang and Dimitri Kusnezov},
journal= {arXiv preprint arXiv:nucl-th/9507034},
year = {2007}
}
Comments
11 pages (Latex), 3 figures (uuencoded postscript)