SEMINARIO a Roma Tre
   

Prof. Emilio De Santis
(Universita La Sapienza)

Titolo: Stochastic Ising model with fast decreasing temperature.

Mercoledi' 19 Ottobre 2016 ORE 15:30

Dipartimento di Matematica e Fisica
Universita' degli Studi Roma Tre
Largo San Leonardo Murialdo,1 - Pal.C, 311

Abstract
In the regime of temperature fast decreasing to zero, results on the
stochastic Ising models are presented.
 A k-dynamics allowing to flip sets of k spins at the same time is
also introduced showing that the behavior
 of the models deeply depends on this parameter. For these models we
follow the classification of Gandolfi, Newman, Stein (2000),
 i.e. a model is of type F if any spin flips finitely many times a.s.,
it is of type I if any spin flips infinitely many times a.s., or it is
of type M otherwise.
 Conditions to obtain models of type F, I, or M and examples are
discussed.