Casimir-Polder interaction of atoms with magnetodielectric bodies
| dc.creator | Buhmann, Stefan Yoshi | |
| dc.creator | Dung, Ho Trung | |
| dc.creator | Kampf, Thomas | |
| dc.creator | Welsch, Dirk-Gunnar | |
| dc.date | 2005-01-28 | |
| dc.date | 2005-04-18 | |
| dc.date.accessioned | 2026-07-07T06:31:22Z | |
| dc.date.available | 2026-07-07T06:31:22Z | |
| dc.description | A general theory of the Casimir-Polder interaction of single atoms with dispersing and absorbing magnetodielectric bodies is presented, which is based on QED in linear, causal media. Both ground-state and excited atoms are considered. Whereas the Casimir-Polder force acting on a ground-state atom can conveniently be derived from a perturbative calculation of the atom-field coupling energy, an atom in an excited state is subject to transient force components that can only be fully understood by a dynamical treatment based on the body-assisted vacuum Lorentz force. The results show that the Casimir-Polder force can be influenced by the body-induced broadening and shifting of atomic transitions - an effect that is not accounted for within lowest-order perturbation theory. The theory is used to study the Casimir-Polder force of a ground-state atom placed within a magnetodielectric multilayer system, with special emphasis on thick and thin plates as well as a planar cavity consisting of two thick plates. It is shown how the competing attractive and repulsive force components related to the electric and magnetic properties of the medium, respectively, can - for sufficiently strong magnetic properties - lead to the formation of potential walls and wells. | |
| dc.description | 16 pages, 6 figures, minor additions and corrections | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0501168 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0501168 | |
| dc.identifier | European Physical Journal D 35 (1), 15 (2005) | |
| dc.identifier | doi:10.1140/epjd/e2005-00044-6 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/98581 | |
| dc.subject | Quantum Physics | |
| dc.title | Casimir-Polder interaction of atoms with magnetodielectric bodies | |
| dc.type | text |