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arXiv · 1308.0712

Quantum friction and fluctuation theorems

F. Intravaia·R. O. Behunin·D. A. R. Dalvit
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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.

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F. Intravaia, R. O. Behunin, D. A. R. Dalvit. 2014-05-19. Quantum friction and fluctuation theorems. https://doi.org/10.1103/physreva.89.050101

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