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arxiv: quant-ph/9801055 · v1 · submitted 1998-01-23 · 🪐 quant-ph

The Casimir force for passive mirrors

classification 🪐 quant-ph
keywords forcemirrorscasimiralwaysarbitrarybandwidthboundscausality
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We show that the Casimir force between mirrors with arbitrary frequency dependent reflectivities obeys bounds due to causality and passivity properties. The force is always smaller than the Casimir force between two perfectly reflecting mirrors. For narrow-band mirrors in particular, the force is found to decrease with the mirrors bandwidth.

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