Fluctuation-induced Casimir forces in granular fluids

Author	dc.contributor.author	Cattuto, C.
Author	dc.contributor.author	Brito, R.	es_CL
Author	dc.contributor.author	Bettolo Marconi, Umberto	es_CL
Author	dc.contributor.author	Nori, F.	es_CL
Author	dc.contributor.author	Soto Bertrán, Rodrigo	es_CL
Admission date	dc.date.accessioned	2008-12-17T15:43:19Z
Available date	dc.date.available	2008-12-17T15:43:19Z
Publication date	dc.date.issued	2006-05-05
Cita de ítem	dc.identifier.citation	PHYSICAL REVIEW LETTERS Volume: 96 Issue: 17 Article Number: 178001 Published: MAY 5 2006	en
Identifier	dc.identifier.issn	0031-9007
Identifier	dc.identifier.uri	https://repositorio.uchile.cl/handle/2250/124789
Abstract	dc.description.abstract	We numerically investigate the behavior of driven noncohesive granular media and find that two fixed large intruder particles, immersed in a sea of small particles, experience, in addition to a short-range depletion force, a long-range repulsive force. The observed long-range interaction is fluctuation-induced and we propose a mechanism similar to the Casimir effect that generates it: The hydrodynamic fluctuations are geometrically confined between the intruders, producing an unbalanced renormalized pressure. An estimation based on computing the possible Fourier modes explains the repulsive force and is in qualitative agreement with the simulations.	en
Lenguage	dc.language.iso	en	en
Publisher	dc.publisher	AMERICAN PHYSICAL SOC	en
Título	dc.title	Fluctuation-induced Casimir forces in granular fluids	en
Document type	dc.type	Artículo de revista