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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-32@lptms.universite-paris-saclay.fr
DTSTART:20120320T110000Z
DTEND:20120320T110000Z
DTSTAMP:20120302T130348Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-c-cammarota/
SUMMARY:Séminaire du LPTMS: C. Cammarota - LPTMS\, salle 201\, 2ème étag
 e\, Bât 100\, Campus d'Orsay - 20 Mar 12 11:00
DESCRIPTION:Exploration of glass transition by pinning particles\nChiara Ca
 mmarota\, IphT Saclay\nUnderstanding the physical mechanism behind glass f
 ormation is a lasting problem in condensed matter physics. Interestingly f
 rom a theoretical point of view\, there are reasons to think that the visc
 ous slowing down of super-cooled liquids' dynamics\, preluding glass forma
 tion\, is due to a new kind of thermodynamic transition\, the glass transi
 tion. This is conjectured to be an entropy vanishing critical point with m
 any peculiarities\, notably an exponential growth of relaxation time.\nI w
 ill first point out why assessing the mere existence of the glass transiti
 on in real systems is particularly difficult\; indeed this issue is still 
 largely questioned. Then I will present an idea\, based on pinning particl
 es at random from an equilibrium configuration\, recently designed to solv
 e this problem. Furthermore\, I will show our predictions for the static a
 nd dynamical behaviors of glassy pinned systems\, obtained through mean fi
 eld computations and a non-perturbative Renormalization Group approach. I 
 will finally discuss why the idea of pinning particles could be used to pr
 oduce decisive tests for the existence of the glass transition in real sys
 tems.
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
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  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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