Abstract:Theory of quantized fields PACS 12.20.-m -Quantum electrodynamics PACS 42.25.Fx -Diraction and scatteringAbstract -The widely-adopted proximity-force approximation (PFA) to estimate normal Casimir forces is known to be asymptotically exact at vanishing separations. In this letter, we propose a correction to the PFA, which is sufficiently accurate in predicting displacement-induced lateral Casimir forces between a sphere and a grating, for separation-to-radius ratio up to 0.5, far beyond the limit within which … Show more
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