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TZID:Europe/Paris
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BEGIN:VEVENT
UID:1-33@lptms.universite-paris-saclay.fr
DTSTART:20120329T140000Z
DTEND:20120329T140000Z
DTSTAMP:20120302T130329Z
URL:http://www.lptms.universite-paris-saclay.fr/seminars/seminaire-commun-
 lpt-lptms-olga-dimitrova/
SUMMARY:Séminaire commun LPT-LPTMS : Olga Dimitrova - LPTMS\, salle 201\, 
 2ème étage\, Bât 100\, Campus d'Orsay - 29 Mar 12 14:00
DESCRIPTION:Specific heat of the Gaussian random bond Ising model on a squa
 re lattice\nOlga Dimitrova\nThe free energy and the specific heat of the t
 wo-dimensional Gaussian random bond Ising model on a square lattice are fo
 und with high accuracy using graph expansion and analysis of continuation 
 of the high-temperature series. At low temperatures the specific heat reve
 als a zero-temperature criticality described by the power law $C\\propto T
 ^1+\\alpha$\, with $\\alpha= 0.65(10)$\, the result confirmed independentl
 y by counting many-body states in finite size samples. The interpretation 
 of the free energy in terms of droplet excitations gives the density of th
 e two-level states\, that follows a novel power law $\\rho(\\epsilon)\\pro
 pto \\epsilon^\\alpha$ at low energies.
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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