Casimir-Polder interatomic potential between two atoms at finite temperature and in the presence of boundary conditions

Details Casimir-Polder interatomic potential between two atoms at finite temperature and in the presence of boundary conditions Casimir-Polder interatomic potential between two atoms at finite temperature and in the presence of boundary conditions

2007-08-16

arxiv.org/abs/0708.2240v1

Physics

Quantum Physics

11 pages

Scientific paper

10.1103/PhysRevA.76.042112

We evaluate the Casimir-Polder potential between two atoms in the presence of an infinite perfectly conducting plate and at nonzero temperature. In order to calculate the potential, we use a method based on equal-time spatial correlations of the electric field, already used to evaluate the effect of boundary conditions on interatomic potentials. This method gives also a transparent physical picture of the role of a finite temperature and boundary conditions on the Casimir-Polder potential. We obtain an analytical expression of the potential both in the near and far zones, and consider several limiting cases of interest, according to the values of the parameters involved, such as atom-atom distance, atoms-wall distance and temperature.

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