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VERSION:2.0
PRODID:-//Memento EPFL//
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SUMMARY:Continuous symmetry breaking and synchronization problem
DTSTART:20230328T150000
DTEND:20230328T155000
DTSTAMP:20260408T003952Z
UID:bb12520c1117b0a887415860c3814693bdcd102d1f657c897a34f65e
CATEGORIES:Conferences - Seminars
DESCRIPTION:Christophe Garban  (Lyons / Geneve)\n\nAbstract:\nIn this tal
 k\, I will start by introducing spin systems on the lattice Z^d. I will th
 en focus mainly on spin systems whose underlying symmetry is continuous (a
 s opposed to the celebrated Ising model whose symmetry sigma->-sigma is di
 screte). The goal of this talk will be to explain a surprising link which 
 appeared recently between these models in statistical physics and question
 s in Bayesian statistics / statistical reconstruction. I will introduce a 
 new way to identify long-range-order in these spins systems with continuou
 s symmetry (also called "symmetry breaking")  which is based on the conce
 pt of "group synchronization" and relies in particular on a recent work by
  Abbe\, Massoulié\, Montanari\, Sly and Srivastava (2018).\n  The talk w
 ill not require any background in statistical physics. \n  This is a joi
 nt work with Thomas Spencer (IAS\, Princeton). \n\n 
LOCATION:GA 3 34 https://plan.epfl.ch/?room==GA%203%2034
STATUS:CONFIRMED
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