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Statut |
Confirmé |
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Série |
FORUM-ENS |
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Domaines |
cond-mat.stat-mech |
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Date |
Mercredi 15 Décembre 2021 |
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Heure |
14:30 |
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Institut |
LPENS |
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Salle |
L367 |
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Nom de l'orateur |
Giacomin |
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Prenom de l'orateur |
Giambattista |
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Addresse email de l'orateur |
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Institution de l'orateur |
DMA ENS & LPSM |
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Titre |
The effect of disorder on pinning models: old and new results |
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Résumé |
Pinning models are a class of exactly solvable models that display a phase
transition
from a delocalized to a localized phase. They naturally appears as simplified
models
for DNA denaturation or for interface wetting in two dimensional systems. Much is
known by now also on the disordered versions of these models. The aim of the talk
is
to give a review of some of the main reults in this field and to discuss
generalized
pinning models in which, in addition to a localization transition, another type of
transition is observed (in absence of disorder). In fact, a partially localized
regime
may appear. In mathematical temrs the key word to have a glimpse of how the
partially
localized trajectories look like is « big jump ». The final aim of the talk is to
explain that (and hopefully why) partial localization is incompatible with the
presence of disorder. In other words, disorder smooths the partial localization
transition.
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|
Numéro de preprint arXiv |
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Commentaires |
Please inquire guillaume.barraquand@ens.fr or xiangyu.cao@ens.fr for a zoom link |
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Fichiers attachés |
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