| Issue |
Europhys. Lett.
Volume 68, Number 6, December 2004
|
|
|---|---|---|
| Page(s) | 776 - 782 | |
| Section | General | |
| DOI | https://doi.org/10.1209/epl/i2004-10275-5 | |
| Published online | 12 November 2004 | |
Forces induced by nonequilibrium fluctuations: The Soret-Casimir effect
Institute for Advanced Studies in Basic Sciences - Zanjan 45195-159, Iran
Received:
9
August
2004
Accepted:
14
October
2004
The notion of fluctuation-induced forces is generalized to the cases where the fluctuations have nonequilibrium origin. It is shown that a net force is exerted on a single flat plate that restricts scale-free fluctuations of a scalar field in a temperature gradient. This force tends to push the object to the colder regions, which is a manifestation of thermophoresis or the Soret effect.
PACS: 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 82.70.-y – Disperse systems; complex fluids / 05.70.Jk – Critical point phenomena
© EDP Sciences, 2004
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