The center for Theoretical Physics (CPHT) at Ecole Polytechnique gathers research scientists working in diverse domains of fundamental and applied Physics. The overall coherence is assured by the corpus of common, transposable, mathematical and numerical methods.
CPHT is a joint research unit of CNRS and Ecole Polytechnique, and has a partnership with the Collège de France. His director is Jean-René Chazottes, Senior Researcher at CNRS.
CPHT is on the campus of Ecole Polytechnique, buildings 5 and 6. The reception offices are located in building 6 , offices 06.1046 and 06.1045.
Postal Address :
CPHT
Ecole Polytechnique
91128 Palaiseau cedex
France
Secretary phone number : 01 69 33 42 01 (from abroad: +33 169 334 201)
Write an email to someone at CPHT : : firstname.lastname@polytechnique.edu
The CPHT Young Researchers Seminar will be held on Thursday the 3rd of October at 15 in Salle Louis Michel.
Magali Korolev : Charge fractionalization in quantum wires
Thomas Pochart : An introduction to axiomatic quantum field theory
The seminar will be followed by a high tea.
Carlota Andrés is the winner of the ERC starting grant 2024 for her project “QGPthroughEEC (Quark Gluon Plasma through Energy-Energy Correlators): A better understanding of the plasma of quarks and gluons”. This project is supported by Ecole Polytechnique. Further information: here
Post-doctoral fellow at the CPHT from 2021 to 2023 in the Particle Physics team, she was then a post-doctoral fellow in Lisbon. She is currently in Boston. She will join the CPHT in July 2025 for a tenure track position.
Une nouvelle approche théorique du problème quantique à N corps a été développée, qui donne pour la première fois accès à une estimation rigoureuse des erreurs commises par les solutions approximatives calculées par des simulations numériques utilisant des méthodes traditionnelles.
Ces travaux ont été conduits par une collaboration entre l'ICFO (Espagne), le Laboratoire Kastler Brossel (LKB, CNRS / Collège de France / ENS-PSL / Sorbonne Université), l'Institut Néel (CNRS / Université Grenoble Alpes), l'Academy of Mathematics and Systems Science (Chine), le Perimeter Institute for Theoretical Physics (Canada), le Centre de Physique Théorique (CPHT, CNRS / Ecole Polytechnique), le Laboratoire d'Analyse et d'Architecture des Systèmes (LAAS) et le Département d'Ingénierie Electrique (ESAT / KU Leuven). Ils sont publiés dans Physical Review X.
Plus d'information : CNRS PHYSIQUE / Actualités
CARROLL PHYSICS, ASYMPTOTIC SYMMETRIES AND CONFORMAL FIELD THEORIES
ARISTOTLE UNIVERSITY OF THESSALONIKI
Laboratory of Theoretical Physics
23 September 2024
Aspects of Cosmology: Mathematics and Physics
Ecole Polytechnique – Becquerel Amphitheatre
September 25-27 2024
The aim of this conference is to bring together mathematicians and physicists working on fields related to cosmology, which has been the subject of tremendous investigations in the past few years.
Properties of the gravitational wave background have been thoroughly explored in recent years, including their generation, propagation and detection. Progress has also been made in a unified description of weak and strong gravitational lensing, as well as in numerical and analytical analysis of the large scale structure of the universe. New properties of inflationary and de Sitter spacetimes have been uncovered, both at the classical and quantum level. In contrast, for alternative theories of gravitation with good ultraviolet behaviour, such as string theory, de Sitter-type solutions cannot emerge, and we now have a more rigorous understanding why this happens. Significant results have been reached in the design of valid quintessence scenarios using the dynamical systems approach to differential equations.
On the mathematical side, successes have been achieved toward understanding the nature of the big bang singularity and the behaviour of general solutions in its vicinity. The stability of FLRW solutions has also been the subject of various studies.
The conference will take place in Ecole Polytechnique (Amphi Becquerel), Palaiseau, from September 25th to September 27th.
Registration is free but mandatory : https://cosmology.sciencesconf.org
Some fundings may be available for graduate students. For this, don't hesitate to write at cosmology@sciencesconf.org
Un événement CNRS grand public intitulé « Recherche vers le futur, cap sur 2074 » se déroulera sur le campus CNRS de Gif-sur-Yvette, les samedi 29 et dimanche 30 juin, après-midis.
Tahar Amari interviendra sur la conférence intitulée « Tempêtes solaires : quels impacts sur la société ? ».
Plus d'informations : ici
Yorgo Pano will defend his thesis on the 28th of June, at 10 a.m. in room Louis Michel.
The subject is "Celestial Amplitudes and Holography".
There will be a pot de thèse after the defense.
The defense of Guillaume Bossard's habilitation on the subject: "The low energy effective action in superstring theory" will take place on Thursday, the 27th at 15:00, at CPHT in Louis Michel.
I will be followed by a “pot”.
The CPHT Young Researchers Seminar will be held on Friday 21th Juneat 3:00 PM in Louis Michel conference room.
Mathieu Beauvillain :A Berry phase in a spinning screw.
Godefroy Meynard : Introduction to laser plasma instabilities and beam smoothing.
The seminar will be followed by a high tea.