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
Patrick Mora, Chercheur émérite au Centre de Physique Théorique, a été invité à participer sur France culture à l'émission " La méthode scientifique" le mardi 31 août 2021 à 16h.
L'émission sera consacrée à la fusion nucléaire.
Charles Marteau is an alumnus of the École Normale Supérieure de Cachan. He studied theoretical physics at the master's degree of the École Normale Supérieure de Paris and fundamental mathematics at the master's degree of Sorbonne University. He joined the string theory group in fall 2017, as a PhD student under the supervision of Marios Petropoulos, on the topic Boundary structures and holographic fluids in gravity.
The arrival of Charles Marteau in the team coincided with the launching of a new research area, holographic correspondence gravity / gauge theory in asymptotically flat space-time, in which another student, Luca Ciambelli, was involved. Together, they clarified the structure underlying the fluid/gravity version of flat holography, namely Carrollian fluid dynamics, an ultra-relativistic version of hydrodynamics. Thanks to this fruitful collaboration, Charles Marteau pursued his thesis in many directions. The main advances of his work can be summarized as follows: (i) the extension of the fluid/gravity correspondence to the flat case which required the ab initio design of Carrollian hydrodynamics; (ii) an exhaustive investigation of three-dimensional gravity and its applications in two-dimensional fluids; (iii) finally the application of Carrollian concepts to the study of the black-hole horizon dynamics.
During his PhD time, Charles Marteau made several long visits abroad, in Europe and in the US, during which he developed his own collaborations with other doctoral and post-doctoral fellows. The extent of the work accomplished as well as his independence as a young researcher can be measured in his publication list: nine articles, four of which were written without his thesis director and signed with a young collaborator. His dissertation is a collection of his first seven papers, put in perspective by an introductory text which allows to set up the framework and to introduce the general notions of asymptotic symmetries and Carrollian geometry.
Charles Marteau is currently a post-doctoral researcher at the University of British Columbia in Vancouver, where he continues his activities in the group of Gordon Semenoff.
Louis Villa soutiendra publiquement ses travaux de thèse intitulés
"Out-of-equilibrium dynamics and quench spectroscopy of ultracold many-body quantum systems"
le 9 juillet 2021 à 14h00 au CPHT, Salle de conférence Louis Michel.
Thèse de doctorat de l’Institut Polytechnique de Paris préparée à l’Ecole Polytechnique, au Centre de Physique Théorique (groupe Matière condensée).
Composition du Jury :
- David Clément, Maître de Conférences, Institut d’Optique Graduate School (Laboratoire Charles Fabry), Rapporteur
- Nicolas Pavloff, Professeur, Université Paris-Saclay (Laboratoire de Physique Théorique et Modèles Statistiques), Rapporteur
- Gabriele De Chiara, Reader, Queen’s University of Belfast (Centre for Theoretical Atomic, Molecular and Optical Physics), Examinateur
- Luca Tagliacozzo, Ramon y Cajal Fellow, Universitat de Barcelona (Departamento de Fisica Cuantica i Astrofisica), Examinateur
- Patrizia Vignolo, Professeure, Université de Nice-Sophia Antipolis (Institut Non-Linéaire de Nice), Examinatrice
- Laurent Sanchez-Palencia, Directeur de recherche, Ecole Polytechnique (Centre de Physique Théorique), Directeur de thèse
La « Nuit des Temps » est une manifestation grand public organisée conjointement par la Société Française de Physique, le CNRS et le CEA et en partenariat avec la Société Française d’Optique, la Société Chimique de France et la revue "Sciences & Avenir".
Plus d'informations : Accueil
Andrea Puhm, chargée de recherche au Centre de Physique Théorique, a été invitée à participer sur France culture à l'émission " La méthode scientifique" le mardi 16 février 2021 de 16 h à 17 h.
L'émission sera consacrée au paradoxe de l’information.
Le Point consacre un article à l’astrophysicien Tahar Amari, spécialiste du magnétisme solaire et l’un des plus grands experts au monde de notre étoile. Le magazine détaille le phénomène des éruptions solaires.
Le point, N° 2530 - 11 Février 2021
Jordan Moles (groupe Physique Mathématique)
Soutiendra publiquement ses travaux de thèse intitulés
"On concentration inequalities for equilibrium states in lattice and symbolic dynamical systems"
dirigés par Jean-René Chazottes et Edgardo Ugalde
Soutenance prévue le vendredi 18 décembre 2020 à 14h00 en visioconférence
Jury :
- Sandro Vaienti, rapporteur et examinateur, Aix-Marseille Université
- Aernout van Enter, université de Groningen, Pays-Bas, rapporteur et examinateur
- Frank Redig, université de Delft, Pays-Bas, examinateur
- Sandro Gallo, université de São Carlos, Brésil, examinateur
- Edgardo Ugalde, université de San Luis Potosí, Mexique, co-directeur de la thèse
- Jean-René Chazottes, CPHT, co-directeur de la thèse
Cédric Lorcé, enseignant-chercheur au Centre de Physique Théorique, lauréat du prix Thibaud 2020.
Le Prix Thibaud, attribué par l'Académie des sciences, belles-lettres et arts de Lyon, distingue tous les 2 ans deux jeunes chercheurs, expérimentateurs ou théoriciens qui se sont particulièrement illustrés dans le domaine de la physique du noyau atomique, des particules ou des astroparticules. Il s'agit d'un prix européen. Le prix est nommé en référence à Jean Thibaud, physicien nucléaire et fondateur de l'Institut de physique nucléaire de Lyon.
Les recherches de Cédric Lorcé portent sur l'étude de la structure des protons et des neutrons en termes de quarks et de gluons. Plus d'informations : Communiqué de presse de l'Académie
Annonce des résultats
Liste des lauréats du Prix Thibaud de 1963 à 2018
Modalités du prix
PhD Student
Research group: String Theory
Thesis
"Celestial amplitudes and holography"
Advisor : Andrea Puhm
Research interests
Quantum gravity, Holography, Amplitudes, Conformally soft theorems, Celestial amplitudes
Publications
[1] Y. Pano, S. Pasterski, and A. Puhm, ''Conformally soft fermions," Journal of High Energy Physics 2021 no. 12, (2021) 1-38.
[2] Y. Pano, A. Puhm, and E. Trevisani, ''Symmetries in Celestial CFT_d,'' arXiv:2302.10222 [hep-th].
| Adresse | CPHT, Ecole Polytechnique, 91128 Palaiseau cedex, France |
| Tél. |
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| Contact | prenom.nom@polytechnique.edu |
| Bureau | Aile 0, pièce 1019 |
Post Doctoral Fellow
Research group: String Theory
Research interests :
My work concerns infinite-dimensional symmetries (and more generally group actions) that appear in various domains of physics. This includes asymptotic symmetries in gravitation and gauge theory, but also condensed matter physics (e.g. the quantum Hall effect) and fluid mechanics. Indeed, all these systems admit rich underlying group structures, with typically striking implications, whose study is often hampered by the complexity of infinite-dimensional manifolds. My goal is to unveil the physical, possibly observable, effects of these groups, for instance through certain Berry phases that are associated with them.
"It is only slightly overstating the case to say that physics is the study of symmetry."
[Philip W. Anderson, "More is different", Science, 1972]
Thesis:
"BMS Particles in Three Dimensions", Université Libre de Bruxelles, 2016.
arXiv:1610.08526
Published in Springer Theses: https://www.springer.com/gp/book/9783319618777
Publications:
List of publications can be found on Inspire : https://inspirehep.net/authors/1626583
Selection of publications:
- B. Oblak and G. Kozyreff, “Berry Phases in the Reconstructed KdV Equation,” arXiv:2002.01780.
- B. Oblak, “Berry Phases on Virasoro Orbits,” JHEP 10 (2017) 114, arXiv:1703.06142.
- G. Barnich, H. A. Gonzalez, A. Maloney, and B. Oblak, “One loop partition function of three- dimensional flat gravity,” JHEP 2015 (2015), no. 4, arXiv:1502.06185.
- B. Oblak, “Characters of the BMS Group in Three Dimensions,” Commun. Math. Phys. 340 (2015), no. 1, 413-432, arXiv:1502.03108.
- G. Barnich and B. Oblak, “Notes on the BMS group in three dimensions: I. Induced representations,” JHEP 2014 (2014), no. 6, arXiv:1403.5803.
| Address | CPHT, Ecole Polytechnique, 91128 Palaiseau cedex, France |
| Phone | 33 (0) 1 69 33 42 71 |
| Contact | firstname.lastname@polytechnique.edu |
| Office | Aile zéro, pièce 1026 |