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BEGIN:VEVENT
UID:1-389@lptms.universite-paris-saclay.fr
DTSTART:20151022T143000Z
DTEND:20151022T160000Z
DTSTAMP:20151008T085850Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/tri-seminaire-de-
 physique-statistique-martin-evans-2/
SUMMARY:Tri séminaire de Physique Statistique : Martin Evans - LPTMS\, sal
 le 201\, 2ème étage\, Bât 100\, Campus d'Orsay - 22 Oct 15 14:30
DESCRIPTION:Explosive condensation in nonequilibrium systems\nMartin EVANS\
 , School of Physics and Astronomy\, Univ. of Edinburgh\nIn this talk I wil
 l discuss condensation in the zero range process (ZRP) and related models.
  The ZRP is a simple model of interacting classical particles hopping betw
 een sites of a one-dimensional lattice\, but with rates that do not obey d
 etailed balance and thus generate a nonequilibrium state. Real-space conde
 nsation is the phenomenon whereby a finite fraction of the particles are t
 ypically found at a single site in the limit of a large system size. I'll 
 show how and why condensation arises and how it is related to large deviat
 ions of sums of random variables. I'll also discuss a variation of the mod
 el exhibiting `explosive condensation' - the condensate moves rapidly thro
 ugh the system and the relaxation time to the stationary state decreases t
 o zero for large system size. This provides a first example of instantaneo
 us gelation in a spatially extended system. If time permits I will also di
 scuss how condensation generally arises when there are two constraints - s
 ay the sum and the variance - on a collection of random variables.\n\n-- 
CATEGORIES:seminars
LOCATION:LPTMS\, salle 201\, 2ème étage\, Bât 100\, Campus d'Orsay\, 15 
 Rue Georges Clemenceau\, Orsay\, 91405\, France
GEO:48.698185;2.181768
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=15 Rue Georges Clemenceau\,
  Orsay\, 91405\, France;X-APPLE-RADIUS=100;X-TITLE=LPTMS\, salle 201\, 2è
 me étage\, Bât 100\, Campus d'Orsay:geo:48.698185,2.181768
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