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 monday the 27th of March at 14h30 in room Louis Michel :
Adrien Kahn on An introduction to the variational method with neural networks
Adrien Fiorucci on A Carroll story : from heavens and back
The seminar will be followed by a high tea.
Out-of-equilibrium, Tilings & the Conformal Bootstrap
Centre de Physique Théorique, salle Louis Michel
Ecole polytechnique
— March 31, 2025 —
Accueil des participants/Café à partir de 10h00
SPEAKERS
10:30 – 11:30 Kirone Mallick (IPhT, CEA Saclay) An exact solution of the macroscopic fluctuation theory
11:30 – 11:45 Coffee break
11:45 – 12:45 Ada Altieri (MSC, Université Paris Cité) Disordered ecologicald dynamics and Moment-matching Inference for gut microbial communities
12:45 – 14:15 Lunch time at the Magnan
14:15 – 15:15 Balt Van Rees (CPHT, Ecole polytechnique) Bootstrapping frustrated magnets
15:15 – 16:15 Grégory Schehr (LPTHE, Sorbonne Université) Universal distribution of the number of minima for random walks and Lévy flights
16:15 – 16:30 Coffee break
16:30 – 17:30 Jean-René Chazottes (CPHT, Ecole polytechnique) Thermodynamic Formalism, Symbolic Dynamics, and Quasicrystal Models
ORGANISERS
Adrien Fiorucci, Marios Petropoulos, Mikel Sanchez
The CPHT Young Researchers Seminar will be held on Thursday the 30th of January at 14h30 in room Louis Michel.
Sariah Al-Saati Introduction to topology in condensed matter
Victor Franken Why do we care about black holes
The seminar will be followed by a high tea.
The CPHT Thesis Day will take place on Thursday January 23, 2025 in the Becquerel amphitheatre.
Programme of the PhD day
FY = First year
9am —> 10.30am: First session
Jean-Gabriel Thiriet will defend his thesis Wednesday, 22th of January, at 2:00 pm, in Ecole polytechnique, Amphi Becquerel.
Title : Stability of flows of interest in inertial confinement fusion: optimal perturbations
Advisor : Arnaud Couairon
PhD thesis defense
Frederick del Pozo will defend his thesis Thursday, 5th of December, at 10h00am, in Ecole polytechnique, Amphi Gregory.
Title : Topological superconductivity in the presence of light-matter coupling and Coulomb interactions
Advisor : Karyn Le Hur
Avis de soutenance
Symposium December 5th 2024 Ecole Polytechnique, Amphi Gregory
Organized by Karyn Le Hur, CPHT Ecole Polytechnique and CNRS
Chair: Olesia Dmytruk, CPHT Ecole Polytechnique and CNRS
“Neural networks for quantum many-body problems”
Annabelle Bohrdt, 14h00 – 14h30, University of Regensburg
"Hall response in bosonic and fermionic interacting ladders"
Roberta Citro, 14h30 – 15h00, University of Salerno
“How to recognize the anyons of the quantum Hall effect from a local measurement”
Leonardo Mazza, 15h00 – 15h30, LPTMS and University Paris-Saclay
Coffee, 15h30 – 16h00
"Connection between Quasicrystals and Quantum Hall problems"
Anuradha Jagannathan, LPS Orsay and University Paris-Saclay, 16h00 – 16h30
"Commensurate-incommensurate transitions in SU(N) AKLT chains"
Loic Herviou, CNRS and LPMMC Grenoble, 16h30-17h00
"Topological defects in spin-orbit coupling"
Andrej Mesaros, LPS Orsay and CNRS, 17h00-17h30
The string group is organising a topical day with informal blackboard presentations and discussion.
Journée Partenariat Hubert Curien
Asymptotic Symmetries, Conformal Field Theories and Applications to Quantum Hall Effect
December 2 2024 10:30 AM at CPHT, room Jean Lascoux.
10h30-12h30 : Rodrigo Olea (Santiago), Matthieu Vilatte (Mons), Marc Geiller (Lyon)
14h-17h : Jibril Ben Achour (Lyon-Munich), Mathieu Beauvillain (Palaiseau), Blagoje Oblak ( Lyon), Simon Pekar (Trieste), Anastasios Petkou (Thessalonique)
Come and take part in the CPHT Science Day
When : Friday, November 22, 2024
Where : Domaine de Saint-Paul, Saint-Rémy-lès-Chevreuse.
This day will be an opportunity to welcome new arrivals and present a selection of the themes studied at the CPHT.
More details : CPHT Science Day
Séminaire de Carlota Andres-Casas, 21/11/2024, 11h, au CPHT, Salle JEAN LASCOUX
Probing the Quark-Gluon Plasma with Energy Correlators
Recent advances in conformal field theory have led to the reformulation of collider jet substructure as the study of correlation functions of the energy flux, known as energy correlators, and their associated light-ray operator product expansion (OPE). Multi-point energy correlators have been measured in proton-proton collisions at the Large Hadron Collider (LHC), offering experimental validation of the light-ray OPE. In this talk, I will highlight the advantages of using energy correlators to probe the quark-gluon plasma produced in heavy-ion collisions, for which the first energy correlator measurement has recently been unveiled. Building on the unique properties of energy correlators, I will introduce a novel observable that stands as the first heavy-ion jet substructure observable where energy loss (or selection bias) is not the leading effect.