Quantum friction and fluctuation theorems
Quantum Physics
2014-05-20 v2 Statistical Mechanics
Abstract
We use general concepts of statistical mechanics to compute the quantum frictional force on an atom moving at constant velocity above a planar surface. We derive the zero-temperature frictional force using a non-equilibrium fluctuation-dissipation relation, and show that in the large-time, steady-state regime quantum friction scales as the cubic power of the atom's velocity. We also discuss how approaches based on Wigner-Weisskopf and quantum regression approximations fail to predict the correct steady-state zero temperature frictional force, mainly due to the low frequency nature of quantum friction.
Cite
@article{arxiv.1308.0712,
title = {Quantum friction and fluctuation theorems},
author = {F. Intravaia and R. O. Behunin and D. A. R. Dalvit},
journal= {arXiv preprint arXiv:1308.0712},
year = {2014}
}
Comments
5+1 pages, 1 figure