Nonequilibrium fluctuation-induced Casimir pressures in liquid mixtures
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2016
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American Physical Society
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Abstract
In this article we derive expressions for Casimir-like pressures induced by nonequilibrium concentration fluctuations in liquid mixtures. The results are then applied to liquid mixtures in which the concentration gradient results from a temperature gradient through the Soret effect. A comparison is made between the pressures induced by nonequilibrium concentration fluctuations in liquid mixtures and those induced by nonequilibrium temperature fluctuations in one-component fluids. Some suggestions for experimental verification procedures are also presented.
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©2016 American Physical Society.
The authors acknowledge valuable discussions with Jeremy N. Munday of the University of Maryland. The research at the University of Maryland was supported by the U.S. National Science Foundation under Grant No. DMR-1401449. The research at Universidad Complutense was funded by the Spanish State Secretary of Research under Grant No. FIS2014-58950-C2-2-P.