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Friction forces on atoms after acceleration
- Source :
- J. Phys.: Condes. Matter 27, 214020 (2015)
- Publication Year :
- 2015
-
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 v^4. These results are also confirmed by an alternative calculation of the average radiation force, which scales as v^3.<br />Comment: 32 pages + 10 pages (appendices), 3 figures
- Subjects :
- Quantum Physics
Subjects
Details
- Database :
- arXiv
- Journal :
- J. Phys.: Condes. Matter 27, 214020 (2015)
- Publication Type :
- Report
- Accession number :
- edsarx.1502.01117
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/0953-8984/27/21/214020