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arXiv · 0907.1435

Repulsive Casimir Force in Chiral Metamaterials

R. Zhao·J. Zhou·Th. Koschny·E. N. Economou·C. M. Soukoulis
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Abstract

We demonstrate theoretically that one can obtain repulsive Casimir forces and stable nanolevitations by using chiral metamaterials. By extending the Lifshitz theory to treat chiral metamaterials, we find that a repulsive force and a minimum of the interaction energy exist for strong chirality, under realistic frequency dependencies and correct limiting values (for zero and infinite frequencies) of the permittivity, permeability, and chiral coefficients.

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R. Zhao, J. Zhou, Th. Koschny, E. N. Economou, C. M. Soukoulis. 2009-07-09. Repulsive Casimir Force in Chiral Metamaterials. https://doi.org/10.1103/physrevlett.103.103602

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