Casimir-like tunneling-induced electronic forces

Details Casimir-like tunneling-induced electronic forces Casimir-like tunneling-induced electronic forces

2005-11-07

arxiv.org/abs/quant-ph/0511066v1

Physics

Quantum Physics

8 pages, 3 figs, submitted to Proc. of QFEXT'05, to be published in J. Phys. A

Scientific paper

10.1088/0305-4470/39/21/S68

We study the quantum forces that act between two nearby conductors due to electronic tunneling. We derive an expression for these forces by calculating the flux of momentum arising from the overlap of evanescent electronic fields. Our result is written in terms of the electronic reflection amplitudes of the conductors and it has the same structure as Lifshitz's formula for the electromagnetically mediated Casimir forces. We evaluate the tunneling force between two semiinfinite conductors and between two thin films separated by an insulating gap. We discuss some applications of our results.

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