Medium-assisted vacuum force
| dc.creator | Tomas, M. S. | |
| dc.date | 2005-02-23 | |
| dc.date | 2005-05-03 | |
| dc.date.accessioned | 2026-07-07T06:21:53Z | |
| dc.date.available | 2026-07-07T06:21:53Z | |
| dc.description | We discuss some implications of a very recently obtained result for the force on a slab in a planar cavity based on the calculation of the vacuum Lorentz force [C. Raabe and D.-G. Welsch, Phys. Rev. A 71, 013814 (2005)]. We demonstrate that, according to this formula, the total force on the slab consists of a medium-screened Casimir force and, in addition to it, a medium-assisted force. The sign of of the medium-assisted force is determined solely by the properties of the cavity mirrors. In the Lifshitz configuration, this force is proportional to 1/d at small distances and is very small compared with the corresponding van der Waals force. At large distances, however, it is proportional to 1/d^4 and is comparable with the Casimir force, especially for denser media. The exponents in these power laws decrease by 1 in the case of a thin slab. The formula for the medium-assisted force also describes the force on a layer of the cavity medium, which has similar properties. For dilute media, it implies an atom-mirror interaction of the Coulomb type at small and of the Casimir-Polder type at large atom-mirror distances. For a perfectly reflecting mirror, the latter force is effectively only three-times smaller than the Casimir-Polder force. | |
| dc.description | RevTex 4, 12 pages, 2 eps figures, small improvements and expanded discussion | |
| dc.identifier | https://arxiv.org/abs/quant-ph/0502145 | |
| dc.identifier | http://arxiv.org/abs/quant-ph/0502145 | |
| dc.identifier | Fizika A 14, 29 (2005) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/95744 | |
| dc.subject | Quantum Physics | |
| dc.title | Medium-assisted vacuum force | |
| dc.type | text |