HAL : hal-00184416, version 1

arXiv : 0710.5679

DOI : 10.1088/1751-8113/41/16/164019

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Journal of Physics A Mathematical and Theoretical 41 (2008) 164019

Casimir torque between corrugated metallic plates

Robson B. Rodrigues 1, Paulo A. Maia Neto 1, Astrid Lambrecht 2, Serge Reynaud 2

(04/2008)

We consider two parallel corrugated plates and show that a Casimir torque arises when the corrugation directions are not aligned. We follow the scattering approach and calculate the Casimir energy up to second order in the corrugation amplitudes, taking into account nonspecular reflections, polarization mixing and the finite conductivity of the metals. We compare our results with the proximity force approximation, which overestimates the torque by a factor 2 when taking the conditions that optimize the effect. We argue that the Casimir torque could be measured for separation distances as large as 1 $\mu{\rm m}.$

1 :	Instituto de Fisica, UFRJ (IFUFRJ)
	Universidade Federal do Rio de Janeiro
2 :	Laboratoire Kastler Brossel (LKB (Jussieu))
	CNRS : UMR8552 – Université Pierre et Marie Curie [UPMC] - Paris VI – Ecole normale supérieure de Paris - ENS Paris

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:

Physique/Physique Quantique

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Contributeur : Serge Reynaud <>

Soumis le : Mercredi 31 Octobre 2007, 09:22:27

Dernière modification le : Mercredi 9 Avril 2008, 13:37:45