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F. Intravaia and C. Henkel
Casimir interaction from magnetically coupled eddy currents
Phys. Rev. Lett. 103 (2009) 130405


    We study the quantum and thermal fluctuations of eddy (Foucault) currents in thick metallic plates. A Casimir interaction between two plates arises from the coupling via quasi-static magnetic fields. As a function of distance, the relevant eddy current modes cross over from a quantum to a thermal regime. These modes alone reproduce previously discussed thermal anomalies of the electromagnetic Casimir interaction between good conductors. In particular, they provide a physical picture for the Casimir entropy whose nonzero value at zero temperature arises from a correlated, glassy state.

[ 0903.4771 ] [ DOI ]

file generated: 11 Feb 2010

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