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Enhanced Casimir Interaction Torque in Nanowire Systems

Morgado, T. A. ; Maslovski , S. ; Silveirinha, M. G.

Enhanced Casimir Interaction Torque in Nanowire Systems, Proc Metamorphose International Congress on Advanced Electromagnetic Materials in Microwaves and Optics - METAMATERIALS, Bordeaux, France, Vol. -, pp. - - -, September, 2013.

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The Casimir torque induced in systems formed by dense arrays of metallic nanorods embedded in dielectric fluids is studied. It is demonstrated that the magnitude of the torque generated in this kind of systems is several orders of magnitude larger than the torque induced in other known structures (e.g., birefringent plates). This anomalously strong Casimir interaction stems from the ultralarge density of photonic states that boost the interaction energy associated with quantum fluctuations of the electromagnetic field in nanowire materials.