On the possibility of Casimir repulsion using Metamaterials

Details On the possibility of Casimir repulsion using Metamaterials On the possibility of Casimir repulsion using Metamaterials

2009-09-15

arxiv.org/abs/0909.2835v1

J. Phys. Conf. Series 161 (2009) 012039

Physics

Quantum Physics

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Scientific paper

It is well known that the Casimir force between two half-spaces is dictated by their electromagnetic properties. In particular, when one of the half-spaces is mainly metallic or dielectric and the other is mainly magnetic, it is possible to show that the force is repulsive. This has attracted lots of interest towards the study of metamterials (MMs) in the context of Casimir effect, as their magnetic activity might help bring the idea of Casimir repulsion from the theoretical realm to experimental verification. In this paper we investigate the possibility of repulsion when the MM magnetic permeability is given not by a Drude-Lorentz behavior, but by a model put forward by Pendry et al. . After introducing the model and deriving the necessary formulas, we show that it is impossible to achieve repulsion with such a model and present a qualitative discussion of why this is so.

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