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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-236@lptms.universite-paris-saclay.fr
DTSTART:20140325T110000Z
DTEND:20140325T120000Z
DTSTAMP:20140327T080419Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-du-lptm
 s-chiara-cammarota/
SUMMARY:Séminaire du LPTMS: Chiara Cammarota - LPTMS\, salle 201\, 2ème 
 étage\, Bât 100\, Campus d'Orsay - 25 Mar 14 11:00
DESCRIPTION:Quantitative theory of the random pinning glass transition and 
 cooperative length scales\nChiara Cammarota\, Sapienza\, Rome\nFirst direc
 t observations of the ideal glass transition may be realized through the s
 tudy of randomly-pinned systems\, systems where a fraction of the particle
 s are frozen in the position they have in an equilibrium configuration. As
  an initial guideline for experimental tests of the glass transition induc
 ed by this construction\, aka Random Pinning Glass Transition (RPGT)\, I w
 ill show the results of first-principles computations by the Hypernetted c
 hain approximation for Hard Sphere glasses which confirm the expected enha
 ncement of glassy behaviour under the procedure of random pinning. I will 
 present the phase diagram as a function of the concentration of pinned par
 ticles and of the global packing fraction\, showing a line of RPGT and two
  spinodal lines for the competing liquid and glass phases. The other main 
 results I will highlight are the first microscopic computation of cooperat
 ive length-scales characterizing amorphous order in glass-formers and quan
 titative information on a key thermodynamic quantity defined in proximity 
 of the ideal glass transitions\, the amorhpous surface tension.
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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