Casimir interaction between a dielectric nanosphere and a metallic plane
Journal Article
·
· Physical Review. A
- Laboratoire Kastler Brossel, CNRS, ENS, UPMC, Case 74, F-75252 Paris (France)
- Instituto de Fisica, UFRJ, C.P. 68528, 21941-909 Rio de Janeiro-RJ (Brazil)
- Institut Laue-Langevin, 6 rue Jules Horowitz, B.P. 156, F-38042 Grenoble (France)
- P.N. Lebedev Physical Institute, 53 Leninsky Prospect, 117924 Moscow (Russian Federation)
We study the Casimir interaction between a dielectric nanosphere and a metallic plane, using the multiple scattering theory. Exact results are obtained with the dielectric described by a Sellmeier model and the metal by a Drude model. Asymptotic forms are discussed for small spheres and large or small distances. The well-known Casimir-Polder formula is recovered at the limit of vanishingly small spheres, while an expression that behaves better at small distances is found for any finite value of the radius. The exact results are of particular interest for the study of quantum states of nanospheres in the vicinity of surfaces.
- OSTI ID:
- 21537427
- Journal Information:
- Physical Review. A, Journal Name: Physical Review. A Journal Issue: 3 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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