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Fundamental limits for non-contact transfers between two bodies (1009.4598v1)
Published 23 Sep 2010 in cond-mat.mes-hall and cond-mat.mtrl-sci
Abstract: We investigate energy and momentum non-contact exchanges between two arbitrary flat media separated by a gap. This problem is revisited as a transmission problem of individual system eigenmodes weighted by a transmission probability obtained either from fluctuational electrodynamics or quantum field theory. An upper limit for energy and momentum flux is derived using a general variational approach. The corresponding optimal reflectivity coefficients are given both for identical and different media in interaction.
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