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Casimir torque between nanostructured plates

Sketch of the configuration giving rise to a Casimir torque.

Sketch of the configuration giving rise to a Casimir torque.

R. Guérout, C. Genet, A. Lambrecht and S. Reynaud
We investigate in detail the Casimir torque induced by quantum vacuum fluctuations between two nanostructured plates. Our calculations are based on the scattering approach and take into account the coupling between different modes induced by the shape of the surface which are neglected in any sort of proximity approximation or effective medium approach. We then present an experimental setup aiming at measuring this torque.
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