dorsal/arxiv
View SchemaBorn expansion of the Casimir-Polder interaction of a ground-state atom with dielectric bodies
| Authors | Stefan Yoshi Buhmann, Dirk-Gunnar Welsch |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0507278 |
| URL | https://arxiv.org/abs/quant-ph/0507278 |
| DOI | 10.1007/s00340-005-2055-3 |
| Journal | Applied Physics B 82 (2), 189 (2006) |
Abstract
Within leading-order perturbation theory, the Casimir-Polder potential of a ground-state atom placed within an arbitrary arrangement of dispersing and absorbing linear bodies can be expressed in terms of the polarizability of the atom and the scattering Green tensor of the body-assisted electromagnetic field. Based on a Born series of the Green tensor, a systematic expansion of the Casimir-Polder potential in powers of the susceptibilities of the bodies is presented. The Born expansion is used to show how and under which conditions the Casimir-Polder force can be related to microscopic many-atom van der Waals forces, for which general expressions are presented. As an application, the Casimir-Polder potentials of an atom near a dielectric ring and an inhomogeneous dielectric half space are studied and explicit expressions are presented that are valid up to second order in the susceptibility.
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"abstract": "Within leading-order perturbation theory, the Casimir-Polder potential of a\nground-state atom placed within an arbitrary arrangement of dispersing and\nabsorbing linear bodies can be expressed in terms of the polarizability of the\natom and the scattering Green tensor of the body-assisted electromagnetic\nfield. Based on a Born series of the Green tensor, a systematic expansion of\nthe Casimir-Polder potential in powers of the susceptibilities of the bodies is\npresented. The Born expansion is used to show how and under which conditions\nthe Casimir-Polder force can be related to microscopic many-atom van der Waals\nforces, for which general expressions are presented. As an application, the\nCasimir-Polder potentials of an atom near a dielectric ring and an\ninhomogeneous dielectric half space are studied and explicit expressions are\npresented that are valid up to second order in the susceptibility.",
"arxiv_id": "quant-ph/0507278",
"authors": [
"Stefan Yoshi Buhmann",
"Dirk-Gunnar Welsch"
],
"categories": [
"quant-ph"
],
"doi": "10.1007/s00340-005-2055-3",
"journal_ref": "Applied Physics B 82 (2), 189 (2006)",
"title": "Born expansion of the Casimir-Polder interaction of a ground-state atom with dielectric bodies",
"url": "https://arxiv.org/abs/quant-ph/0507278"
},
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