Academics

Another look at the KPZ problem

Time: 17:00-17:45, 2024-11-04

Venue:A6-1

Speaker:Konstantin Khanin

Speaker: Konstantin Khanin (BIMSA)

Time: 17:00-17:45, 2024-11-04

Venue: A6-1

Zoom: 388 528 9728

Password: BIMSA

Abstract

I will start by introducing the phenomenon of the KPZ (Kardar-Parisi-Zhang) universalty. KPZ problem was a very active research area in the last 20 years. The problem is essentially interdisciplinary. It is related to such fields as probability theory, statistical mechanics, mathematical physics, PDE, SPDE, random dynamics, random matrices, and random geometry, to name a few. In the most general form the problem can be formulated in the following way. Consider random geometry on the two-dimensional plane. We shall think about it as a random landscape of hills, mountains, and valleys. The main aim is to understand the asymptotic statistical properties of the length of the geodesic connecting two points in the limit as distance between the endpoints tends to infinity. One also wants to study the geometry of random geodesics, in particular how much they deviate from a straight line. It turns out that the limiting statistics for both the length and the deviation is universal, that is it does not depend on the probability distribution of the random landscape. Moreover, many limiting probability distributions can be found explicitly.

Speaker Intro

Khanin received his PhD from the Landau Institute of Theoretical Physics in Moscow and continued working there as a Research Associate until 1994.[2] Afterwards, he taught at Princeton University, at the Isaac Newton Institute in Cambridge, and at Heriot-Watt University before joining the faculty at the University of Toronto. Khanin was an invited speaker at the European Congress of Mathematics in Barcelona in 2000. He was a 2013 Simons Foundation Fellow. He held the Jean-Morlet Chair at the Centre International de Rencontres Mathématiques in 2017, and he was an Invited Speaker at the International Congress of Mathematicians in 2018 in Rio de Janeiro. In 2021 he was awarded The Humboldt Prize, also known as the Humboldt Research Award, in recognition of his lifetime's research achievements.

Member Seminar Intro

The BIMSA member seminar is a weekly event during which researchers engage in discussions about their extensive research interests, addressing a diverse audience that includes fellow researchers and all postdoctoral scholars within the institute. This forum provides a unique privilege and an invaluable opportunity for each research faculty member, serving as a speaker, to introduce their research field, promote the subject within the institute, and ignite the potential for future collaborations with other research groups within the institute.

The lecture format consists of a 30-minute colloquium-style presentation, thoughtfully tailored to be accessible to postdoctoral scholars and researchers from diverse disciplines within the institute. Following the presentation, a 15-minute discussion session is anticipated, involving active participation from postdocs representing various fields.

It is mandatory for all postdocs at the institute to actively participate in this event. The enthusiastic involvement of faculty members is greatly valued and will prove mutually beneficial for both the speaker and the junior audience.

Organizers

Yuval Peres

Professor

Probability Theory

Artan Sheshmani

Professor

Algebraic Geometry

Hossein Yavartanoo

Professor

Mathematical Physics

DATENovember 1, 2024
SHARE
Related News
    • 0

      KPZ scaling and the Tracy-Widom distribution in the Ising model

      Speaker IntroSenya Shlosman obtained his PhD in 1978, from the St.-Petersburg branch of Steklov institute. His adviser was Roland Dobrushin. He obtained his second PhD (habilitation) in 1989, from the Ukrainian Institute of Mathematics. From 1991 he was Professor of the Dept. of Math., UC Irvine. He moved to France in 1996, getting the position of Directeur de Recherche in CPT, CNRS, Luminy, Ma...

    • 1

      A new look at string theory solutions via numerical methods

      AbstractString theory provides a framework to study phenomenological models of dark energy with many fields - models which have not been explored with respect to their mathematical and phenomenological structures. This has largely been due to the lack of working methods to study such solutions. In this talk, I give an overview on recent progress which allows us to study these solutions in an ef...