2008 - Quantum and complex systems

Thematic semester of the university of Cergy-Pontoise

Mathematical foundations, physical theories, experiments, simulations.


22 & 23 January 2008
Inhomogeneous Random Systems
Location : Amphi Darboux, Institut Henri Poincaré, Paris
Organizers : Francois Dunlop, Thierry Gobron (Cergy) & Ellen Saada (Rouen)
Contact : Thierry Gobron (%20gobron @ u-cergy.fr)
The aim of this annual workshop is to bring together mathematicians and physicists working on disordered or random systems, and to discuss recent developments on themes of common interest. Each of the two days is devoted to a specific topic : "Stochastic Models for Evolution" on January 22nd, 2008, and "Ancestral Problems in Population Genetics" on January 23rd, 2008. The conference is free and open to all.

Inscriptions :
By e-mail : inter @ math.cnrs.fr with subject : IRS 2008 and the following informations : Name, Institution, Address and Email
By mail :
Ellen Saada
Laboratoire de Mathematiques Raphael Salem
Universite de Rouen,
Avenue de l’Universite, BP.12,
76801 Saint Etienne du Rouvray
Fax : +33 2 3295 5286

31 January & 1st February 2008
Spectral Problems in Quantum Mechanics
European Research Group "Mathematics and Quantum Physics" symposium
Location : Amphi A1, Saint-Martin II, Université de Cergy-Pontoise
Organizers : Laurent Bruneau, François Germinet, Mathieu Lewin
Contact : Mathieu Lewin (Mathieu.Lewin @ math.cnrs.fr) 

The European Research Group "Mathematics and Quantum Physics" gathers 44 teams in Europe, including 25 in France, all working in the field of Quantum Mathematical Physics. Every year the best scientists participate to a conference organized by one of the teams. This year, it takes place for the first time in Cergy, close to Paris. Aiming at reinforcing the links between the different teams, this is a major event of the european Mathematical Physics community.

21 - 25 april 2008
Quantum Statistical Physics and Information Theory week

Two events in this week :

From 21 to 23 april 2008 : Quantum Information
A series of introductionary courses
Location : Amphi A1, Saint-Martin 2, Cergy-Pontoise university
Organizers : Jean Avan, François Germinet, Flora Koukiou, Mathieu Lewin, Sylvain Reynal & Tuong Truong
Contact : Mathieu Lewin (Mathieu.Lewin @ math.cnrs.fr)

The theory of quantum information is a result of the effort to generalize classical information theory to the quantum world. Quantum information theory aims at answering the following question : what happens if information is stored in a state of a quantum system ?
During the three days several long courses will be provided by well-known scientists working in the field. It is dedicated to Master or PhD students, or non specialists researchers.
Different aspects of the subject will be covered : the mathematical foundations, the physical interpretation, the experimental issues and the algorithmic theory.

From 23 to 25 april 2008 : Entropic fluctuations in statistical mechanics
A course by Vojkan Jacksic
Location : Amphi A1, Saint-Martin 2, Cergy-Pontoise university
Organizers : Laurent Bruneau, François Germinet & Mathieu Lewin
Contact : Mathieu Lewin (Mathieu.Lewin @ math.cnrs.fr)

The University of Cergy-Pontoise offers mobility scholarships (up to 500 €) for master’s students, PhD students or post-docs who want to participate to the week.
Application : Mathieu Lewin (Mathieu.Lewin @ math.cnrs.fr)

In the first part of the mini-course I shall discuss how the entropy production observable can be defined for any classical or quantum dynamical system as a derivative of the Radon-Nikodym cocycle.
For the so-called open systems, which describe the interaction of several thermal reservoirs, this definition coincides with the standard thermodynamical definition in terms of the fluxes (heat, charge, mass...) across the system. After reviewing some basic properties of the entropy production observable and non- equilibrium steady states, I shall describe the large deviation theory of the entropy production observable. The main topic will be certain symmetries (Evans-Searls and Gallavotti-Cohen) of the moment generating functionals which can be interpreted as an extension of the Green-Kubo linear response formula to far from equilibrium steady states.

The emphasis of the course will be on the mathematical structure of the theory. One novelty of the exposition is that the classical and quantum case will be treated in parallel. The mini-course is based on some very recent joint work with Claude-Alain Pillet, Yan Pautrat, Yoshiko Ogata and Luc Rey-Bellet.

23 - 24 June 2008
Spectral problems in Quantum Mechanics
Organizer : Clotilde Fermanian (Paris 12), Andrei Iftimovici et Mathieu Lewin (Cergy)

From 7 to 11 july 2008
Spectral and Scattering Theory for Quantum Magnetic Systems
Location : Centre International de Rencontres Mathématiques, Université de Marseille-Luminy.
Organizers : François Germinet (Cergy), Georgi Raikov (Santiago, Chile), Philippe Briet (Toulon) & Dimitri Yafaev (Rennes)
Contact : François Germinet (francois.germinet @ u-cergy.fr)

From 14 to 18 july 2008
5th European Congress of Mathematics
Session : Random and quasi-periodic operators

Location : Amsterdam
Organizers : F. Germinet (UCP), F. Klopp (Paris 13)
Contact : François Germinet (francois.germinet @ u-cergy.fr)

Semester coordination : Mathieu Lewin (Mathieu.Lewin @ math.cnrs.fr)