Coming soon!
Oriane Blondel (Université Paris Cité)
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Elisabetta Candellero (Università degli Studi Roma Tre)
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Alberto Chiarini (Università di Padova)
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Benoit Dagallier (Imperial Collegue, London)
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Shirshendu Ganguly (University of California, Berkeley)
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Reza Gheissari (Northwestern University)
Title : Phase ordering in low-temperature Ising dynamics
Abstract We consider the out-of-equilibrium behavior of Ising Glauber dynamics at low temperatures. It is well-known that in its low-temperature regime, the Ising Glauber dynamics takes an exponential time to equilibrate, due to a bottleneck between the mostly plus and mostly minus phases of the model. The question of phase ordering, studied in the physics literature since the 1960s, asks whether bias in the magnetization at initialization is enough to cause the system to quickly (quasi-)equilibrate to the plus phase. Caputo and Martinelli (2005) showed such a result on trees, namely that low-temperature Glauber dynamics initialized from product measures with sufficient bias towards plus, rapidly converge to the plus measure on the tree. We will present progress on this question in $\mathbb Z^2$, joint with Allan Sly.
Ivailo Hartarsky (Université Claude Bernard Lyon 1)
Title: Triangular plaquette model
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Consider the following plaquette model from statistical physics: a lamp lies at every vertex of the triangular lattice and a switch lies at every even vertex of the (bipartite) dual hexagonal lattice. Each switch toggles the three lamps on its face. The energy of a configuration is the number of ON lamps. We study the relaxation time of the associated Glauber dynamics, proving its conjectured super-Arrhenius scaling at low temperature. We also reveal highly unusual behaviour in finite volume around the critical length scale.
The talk is based on joint work with Laurent Bartholdi and Ivan Mitrofanov.
Ron Peled (University of Maryland, College Park)
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Matteo Quattropani (Università degli Studi Roma Tre)
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Justin Salez (Univ. Dauphine PSL)
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Federico Sau (Università degli Studi di Milano)
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Assaf Shapira (Université Paris Cité)
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Vittoria Silvestri (Sapienza, Università di Roma)
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Alexandre Stauffer (King's College London)
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Vincent Tassion (ETH Zurich)
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