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UID:5417@i2m.univ-amu.fr
DTSTART;TZID=Europe/Paris:20241008T143000
DTEND;TZID=Europe/Paris:20241008T153000
DTSTAMP:20240925T145803Z
URL:https://www.i2m.univ-amu.fr/evenements/tba-131/
SUMMARY:Cristina TONINELLI (Ceremade\, Université Paris Dauphine): Fredric
 kson-Andersen 2-spin facilitated model: sharp threshold
DESCRIPTION:Cristina TONINELLI: \n\n\n\nThe Fredrickson-Andersen 2-spin fac
 ilitated model (FA-2f) on Zd is a paradigmatic interacting particle system
  with kinetic constraints (KCM) featuring cooperative and glassy dynamics.
  For FA-2f vacancies facilitate motion: a particle can be created/killed o
 n a site only if at least 2 of its nearest neighbors are empty. We will pr
 esent sharp results for the first time\, τ\, at which the origin is empti
 ed for the stationary process when the density of empty sites (q) is small
 . In any dimension d ≥ 2 it holds\n\n\n\nw.h.p.\, with λ(d\,2) the thre
 shold constant for the 2-neighbour bootstrap percolation on Zd.\n\nWe will
  explain the dominant relaxation mechanism leading to this result\, give a
  flavour of the proof techniques\, and discuss further results that can be
  obtained via our technique for more general KCM\, including full universa
 lity results in two dimensions.\n\n[Joint work with I.Hartarsky and F.Mart
 inelli]\n\n\n\n
CATEGORIES:Séminaire,Probabilités
LOCATION:I2M Saint-Charles - Salle de séminaire\, Université Aix-Marseill
 e\, Campus Saint-Charles\, 3 Place Victor Hugo\, Marseille\, 13003\, Franc
 e
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=Université Aix-Marseille\,
  Campus Saint-Charles\, 3 Place Victor Hugo\, Marseille\, 13003\, France;X
 -APPLE-RADIUS=100;X-TITLE=I2M Saint-Charles - Salle de séminaire:geo:0,0
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