Universality versus material dependence of fluctuation forces between metallic wires

Details Universality versus material dependence of fluctuation forces between metallic wires Universality versus material dependence of fluctuation forces between metallic wires

2011-06-24

arxiv.org/abs/1106.4981v1

Phys. Rev. A 84, 042501 (2011)

Physics

Condensed Matter

Statistical Mechanics

Scientific paper

10.1103/PhysRevA.84.042501

We calculate the Casimir interaction between two parallel wires and between a wire and a metall plate. The dielectric properties of the objects are described by the plasma, Drude and perfect metal models. We find that at asymptotically large separation interactions involving plasma wires and/or plates are independent of the material properties, but depend on the dc conductivity $\sigma$ for Drude wires. Counterintuitively, at intermediate separations the interaction involving Drude wires can become independent of $\sigma$. At smaller separations, we compute the interaction numerically and observe an approach to the proximity approximation.

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