Reduction of the Casimir force using aerogels

Details Reduction of the Casimir force using aerogels Reduction of the Casimir force using aerogels

2007-08-02

arxiv.org/abs/0708.0434v1

Physics

Quantum Physics

to appear J. Appl. Phys

Scientific paper

10.1063/1.2767225

By using silicon oxide based aerogels we show numerically that the Casimir force can be reduced several orders of magnitude, making its effect negligible in nanodevices. This decrease in the Casimir force is also present even when the aerogels are deposited on metallic substrates. To calculate the Casimir force we model the dielectric function of silicon oxide aerogels using an effective medium dielectric function such as the Clausius-Mossotti approximation. The results show that both the porosity of the aerogel and its thickness can be use as control parameters to reduce the magnitude of the Casimir force.

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