Repulsive Casimir Force in Chiral Metamaterials

Details Repulsive Casimir Force in Chiral Metamaterials Repulsive Casimir Force in Chiral Metamaterials

2009-07-09

arxiv.org/abs/0907.1435v1

Phys.Rev.Lett.103:103602,2009

Physics

Condensed Matter

Materials Science

4 pages, 4 figures, letter. submitted to Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.103.103602

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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