dorsal/arxiv
View SchemaAtom-wall dispersive forces from master equation formalism
| Authors | T. N. C. Mendes, C. Farina |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0703186 |
| URL | https://arxiv.org/abs/quant-ph/0703186 |
| DOI | 10.1088/1751-8113/40/26/016 |
Abstract
Using the general expressions for level shifts obtained from the master equation for a small system interacting with a large one considered as a reservoir, we calculate the dispersive potentials between an atom and a wall in the dipole approximation. We analyze in detail the particular case of a two-level atom in the presence of a perfectly conducting wall. We study the van der Waals as well as the resonant interactions. All distance regimes as well as the high and low temperature regimes are considered. We show that the Casimir-Polder interaction can not be considered as a direct result of the vacuum fluctuations only. Concerning the interaction between the atom and the wall at high temperature, which show that a saturation of the potential for all distances occurs. This saturated potential coincides exactly with that obtained in the London-van der Waals limit.
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"abstract": "Using the general expressions for level shifts obtained from the master\nequation for a small system interacting with a large one considered as a\nreservoir, we calculate the dispersive potentials between an atom and a wall in\nthe dipole approximation. We analyze in detail the particular case of a\ntwo-level atom in the presence of a perfectly conducting wall. We study the van\nder Waals as well as the resonant interactions. All distance regimes as well as\nthe high and low temperature regimes are considered. We show that the\nCasimir-Polder interaction can not be considered as a direct result of the\nvacuum fluctuations only. Concerning the interaction between the atom and the\nwall at high temperature, which show that a saturation of the potential for all\ndistances occurs. This saturated potential coincides exactly with that obtained\nin the London-van der Waals limit.",
"arxiv_id": "quant-ph/0703186",
"authors": [
"T. N. C. Mendes",
"C. Farina"
],
"categories": [
"quant-ph"
],
"doi": "10.1088/1751-8113/40/26/016",
"title": "Atom-wall dispersive forces from master equation formalism",
"url": "https://arxiv.org/abs/quant-ph/0703186"
},
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