Mode contributions to the Casimir effect
Francesco Intravaia, Carsten Henkel
TL;DR
This paper investigates how different electromagnetic modes, specifically surface plasmons and eddy currents, contribute to the Casimir effect between finite-conductivity plates, revealing mode-specific influences on the force and free energy.
Contribution
It introduces a mode-resolved analysis of the Casimir effect, highlighting the distinct roles of surface plasmons and eddy currents in the interaction.
Findings
Eddy currents induce a repulsive force in TE polarization.
At high temperatures, eddy currents cancel the plasma model Casimir free energy.
Surface plasmons significantly influence the Casimir interaction.
Abstract
Applying a sum-over-modes approach to the Casimir interaction between two plates with finite conductivity, we isolate and study the contributions of surface plasmons and Foucault (eddy current) modes. We show in particular that for the TE-polarization eddy currents provide a repulsive force that cancels, at high temperatures, the Casimir free energy calculated with the plasma model.
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