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Probability and Combinatorics

Tuesday, October 1, 2019 - 3:00pm

Amir Dembo

Stanford University

Location

University of Pennsylvania

DRL 4C6

In this talk, based on a joint work with Eliran Subag, I will explain how to rigorously derive the integro-differential equations that arise in the thermodynamic limit of the empirical correlation and response functions for Langevin dynamics in mixed spherical p-spin disordered mean-field models. 
 
I will then compare the large time asymptotic of these equations in case of uniform (infinite-temperature) starting point, to what one obtains when starting within one of the spherical bands on which the Gibbs measure concentrates at low temperature, commenting on the existence of an aging phenomenon, and on the relations with the recently discovered geometric structure of the Gibbs measures at low temperature.