Casimir energy of a dilute dispersive dielectric ball: realistic microscopic model

Details Casimir energy of a dilute dispersive dielectric ball: realistic microscopic model Casimir energy of a dilute dispersive dielectric ball: realistic microscopic model

2002-02-04

arxiv.org/abs/quant-ph/0202017v1

Int.J.Mod.Phys. A17 (2002) 786-789

Physics

Quantum Physics

Latex 2e, 4 pages, 1 figure, to appear in Int. J. Mod. Phys. A [a talk given at the Fifth Leipzig Workshop on Quantum Field Th

Scientific paper

10.1142/S0217751X0201011X

The Casimir energy of a dilute homogeneous nonmagnetic dielectric ball at zero temperature is derived analytically within a microscopic realistic model of dielectrics for an arbitrary physically possible frequency dispersion of dielectric permittivity. Divergences are absent in calculations, a minimum interatomic distance is a physical cut-off. Casimir surface force is proved to be attractive. A physical definition of the Casimir energy is discussed.

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