Exposé de la semaine prochaine
Le GTT aura lieu à Sophie Germain
21 Octobre 2015 Vu-Lan Nguyen
End point localization in log gamma polymer model
As a general fact, directed polymers in random environment are localized in the so-called strong disorder phase. In this talk, based on a joint work with Francis Comets, we will consider the exctly solvable model with log-gamma environment, introduced recently by Seppalainen. For the stationary model and the point-to-line version, the localization can be expressed as the trapping of the end-point in a potential given by an independent random walk.