Anomalous diffusion in quantum Brownian motion with colored noise
Quantum Physics
2007-05-23 v1
Abstract
Anomalous diffusion is discussed in the context of quantum Brownian motion with colored noise. It is shown that earlier results follow simply and directly from the fluctuation-dissipation theorem. The limits on the long-time dependence of anomalous diffusion are shown to be a consequence of the second law of thermodynamics. The special case of an electron interacting with the radiation field is discussed in detail. We apply our results to wave-packet spreading.
Cite
@article{arxiv.quant-ph/0603240,
title = {Anomalous diffusion in quantum Brownian motion with colored noise},
author = {G. W. Ford and R. F. O'Connell},
journal= {arXiv preprint arXiv:quant-ph/0603240},
year = {2007}
}