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Article Dans Une Revue Physical Review Letters Année : 2010

Thermal Casimir Effect in the Plane-Sphere Geometry

Résumé

We evaluate the Casimir force between a plane and a sphere at ambient temperature. The material properties are described either by a perfect reflector model, the lossless plasma model or the dissipative Drude model. The results exhibit a rich interplay between the effects of geometry, temperature and dissipation. We give numerical results in a large domain of parameters along with analytical evaluations explaining some striking effects obtained in the limit of large distances. Negative entropies are predicted to occur for all three models, including the perfect reflector model.

Dates et versions

hal-00429899 , version 1 (05-11-2009)

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Antoine Canaguier-Durand, Paulo a Maia Neto, Astrid Lambrecht, Serge Reynaud. Thermal Casimir Effect in the Plane-Sphere Geometry. Physical Review Letters, 2010, 104, pp.040403. ⟨10.1103/PhysRevLett.104.040403⟩. ⟨hal-00429899⟩
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