Le livre Problems in Quantum Field Theory  de François Gélis, largement inspiré par ses cours de théorie des champs au Master "Physique des Hautes Energies" à l´Ecole Polytechnique, vient d'être publié par Cambridge University Press. Ce nouveau livre fait suite à son précédent ouvrage, Quantum Field Theory, publié par CUP en 2019. English version Page de l'éditeur  

A conference honouring the 60 years anniversary of our former colleague Denis Bernard will take place at the ENS Paris : 45 rue d’Ulm, Salle Dussane - October 14-16, 2021.

Our friend and colleague Hubert Saleur has recently turned 60. A conference celebrating his anniversary and focusing on his numerous contributions to condensed matter physics, low-dimensional quantum field theory, and mathematical physics will take place at the IPhT on September 20-23, 2021.  Participation and talks will be in hybrid mode. On-site participants will have to wear masks inside the Institute building and will have to show a valid immunisation certificate or a valid negative test for SARS-CoV-2 (of less than 72 hours) upon registration on Monday morning. Since the maximum capacity of the Amphi Claude Bloch is restricted to 50 persons, registration is necessary. More details can be found on the webpage of the conference :  http://www.phys.ens.fr/~jacobsen/AMP21.html Organisers: Jesper Jacobsen (ENS Paris), Didina Serban (IPhT Saclay), Nicholas Warner (USC Los Angeles)

The meeting will be held at the Institut de Physique Théorique (IPhT-CEA) in Saclay from Sept 13 to 15 and at the Ecole Normale Supérieure (ENS) in Paris on Sept 16. It will bring together experts in the field of integrable systems and address important open questions in the calculation of correlation functions and wave functions in integrable models, with applications to N=4 Super-Yang-Mills theory, Heisenberg spin chains and 2d relativistic QFTs. Participation will be in person only. Participants will have to wear masks inside the Institute building and will have to show a valid immunisation certificate or a valid negative test for SARS-CoV-2 (of less than 72 hours) upon registration on Monday morning. The maximum capacity of the Amphi Claude Bloch being restricted to 50 persons, registration is necessary and it can be done via the corresponding link on the webpage of the conference: https://indico.in2p3.

The microscopic description of black holes has been a challenge for more that forty years.  There are now quite a number of promising approaches to solving this problem and the primary goal of this conference and workshop is to bring together experts in these areas to identify synergies, engage in constructive criticism and resolve apparent conflicts.  A significant focus will be the dynamics of black-hole microstructure: how infalling matter is scrambled and how information is recovered. The conference will involve three or four talks a day and three panel discussions.   All events will be held via Zoom and streamed to Youtube Organizers: Iosif Bena and Nick Warner

Thermalization and out of equilibrium dynamics of many body strongly interacting quantum systems have been the subject of a recent burst of research activities. In particular the dynamics of operator and information spreading (scrambling) as well as its chaotic behavior have been recently investigated starting from models originated in the context of strongly correlated many body systems and have found application to black holes physics. This has been triggered by the appearance of a new class of exactly soluble large N quantum field theories, such as the celebrated Sachdev-Ye-Kitaev model. The aim of this workshop is to review the recent advances in the field and to stimulate further research in this direction which lies at the interface between statistical and condensed matter physics and high-energy/mathematical physics. Due to the current situation, the conference will take place online.

Après avoir donné pendant plusieurs années un cours de théorie quantique des champs au Master 2 ¨High Energy Physics¨ à l´Ecole Polytechnique, Francois Gelis a publié ses notes de cours chez Cambridge University Press, en un volume intitulé Quantum Field Theory: from basics to modern topics. Version anglaise Pour davantage d'informations, voir le lien ci-dessous.  

Nous avons le plaisir d'apprendre que Jean-François Le Gall, professeur à l'Université Paris-Sud/Paris-Saclay, vient de recevoir le prestigieux prix Wolf 2019 en mathématiques. Jean-François Le Gall est un spécialiste de la théorie des probabilités et du mouvement brownien. Au cours des douze dernières années, il s'est intéressé aux «cartes aléatoires» qui sont à la base d'une formulation mathématiquement rigoureuse de la gravité quantique bidimensionnelle. Plusieurs chercheurs de l'IPhT ont eu l'occasion d'interagir régulièrement avec lui dans ce domaine en pleine ébullition, notamment dans le cadre des journées Cartes et de la conférence Itzykson 2015 où il fut orateur invité.