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Article Dans Une Revue Journal of Physics A: Mathematical and Theoretical Année : 2008

Casimir torque between corrugated metallic plates

Résumé

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 $\mu{\rm m}.$

Dates et versions

hal-00184416 , version 1 (31-10-2007)

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Robson B. Rodrigues, Paulo A. Maia Neto, Astrid Lambrecht, Serge Reynaud. Casimir torque between corrugated metallic plates. Journal of Physics A: Mathematical and Theoretical, 2008, 41, pp.164019. ⟨10.1088/1751-8113/41/16/164019⟩. ⟨hal-00184416⟩
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