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

Valery N. Marachevsky
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Abstract

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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Valery N. Marachevsky. 2002-02-04. Casimir energy of a dilute dispersive dielectric ball: realistic microscopic model. https://doi.org/10.1142/s0217751x0201011x

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