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SUMMARY:Kinetically constrained spin models - Cristina Toninelli (Universi
 té Pierre et Marie Curie Paris)
DTSTART:20160711T084500Z
DTEND:20160711T093000Z
UID:TALK66726@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:We shall discuss kinetically constrained spin models (KCSM)\, 
 a class ofinteracting particle systems which have been introduced in physi
 cs liter-ature to model liquid-glass and more general jamming transitions.
  Theevolution of KCSM follows a continuous time Markov process whoseelemen
 tary moves are birth and death of particles. The key feature isthat a move
  occurs only if the con&#12\;guration satis&#12\;es a local constraint.The
 se constraints induce the existence of clusters of blocked particles\,the 
 occurrence of several invariant measures and ergodicity breakingtransition
 s. We shall present some results concerning the identi&#12\;cationof the e
 rgodic regime and the exponential convergence to equilibriumin this regime
 . After establishing a connection with monotone cellu-lar automata of boot
 strap percolation type\, we shall conclude our talkwith a discussion of a 
 particular KCSM for which the correspondingcellular automaton has a peculi
 ar discontinuous percolation transition.
LOCATION:Seminar Room 1\, Newton Institute
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