Casimir interaction between plane and spherical metallic surfaces

We give an exact series expansion of the Casimir force between plane and spherical metallic surfaces in the nontrivial situation where the sphere radius R, the plane-sphere distance L and the plasma wavelength lambda(P) have arbitrary relative values. We then present numerical evaluation of this exp...

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Bibliographic Details
Published in:Physical review letters 2009-06, Vol.102 (23), p.230404-230404, Article 230404
Main Authors: Canaguier-Durand, Antoine, Maia Neto, Paulo A, Cavero-Pelaez, Ines, Lambrecht, Astrid, Reynaud, Serge
Format: Article
Language:English
Subjects:
APPROXIMATIONS
CASIMIR EFFECT
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
CORRELATIONS
EVALUATION
GEOMETRY
INTERACTIONS
Physics
PLASMA
Quantum Physics
REFLECTIVITY
SERIES EXPANSION
SPHERES
SURFACES
WAVELENGTHS
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Summary:We give an exact series expansion of the Casimir force between plane and spherical metallic surfaces in the nontrivial situation where the sphere radius R, the plane-sphere distance L and the plasma wavelength lambda(P) have arbitrary relative values. We then present numerical evaluation of this expansion for not too small values of L/R. For metallic nanospheres where R, L and lambda(P) have comparable values, we interpret our results in terms of a correlation between the effects of geometry beyond the proximity force approximation and of finite reflectivity due to material properties. We also discuss the interest of our results for the current Casimir experiments which are performed with spheres of large radius R>>L.
ISSN:0031-9007
1079-7114
DOI:10.1103/physrevlett.102.230404