Potsdam University Potsdam Quantum Optics Group

Universität Potsdam
Institut für Physik
Karl-Liebknecht-Str. 24/25
14476 Potsdam-Golm
Potsdam Quantum Optics Group: Home

Potsdam Quantum Optics Group: Teaching

Potsdam Quantum Optics Group: Research

Potsdam Quantum Optics Group: How to find us









 

       
 Publications
 2015
   intravaia14b
 
F. Intravaia, V. E. Mkrtchian, S. Buhmann, S. Scheel, D. A. R. Dalvit, and C. Henkel
Friction forces on atoms after acceleration
J. Phys. Condens. Matt. 27 (2015) 214020

Abstract

    The aim of this paper is to revisit the calculation of atom-surface quantum friction in the quantum field theory formulation put forward by Barton [New J. Phys. 12 (2010) 113045]. We show that the power dissipated into field excitations and the associated friction force depend on how the atom is boosted from being initially at rest to a configuration in which it is moving at constant velocity (v) parallel to the planar interface. In addition, we point out that there is a subtle cancellation between the one-photon and part of the two-photon dissipating power, resulting in a leading order contribution to the frictional power which goes as v4. These results are also confirmed by an alternative calculation of the average radiation force, which scales as v3.

[ 1502.01117 ]

file generated: 28 Nov 2016


   
   
printer-friendly version
   
   
Webmaster