Current fellows

Contact us

Contact us


Jean-Marc Berroir
Labex Director
directeur@phys.ens.fr

Sarah Reemers
Administrative manager of Labex
sarah.reemers@phys.ens.fr

Master in Fundamental Physics

Application
https://applicationicfp.phys.ens.fr

Contact
click here

Scholarship
More information


Anxo Farina Biasi (from September 2022)
Anxo received his PhD in 2019 at the University of Santiago de Compostela (Spain) under the supervision of Javier Mas ; and did a first postdoc at the Jagiellonian University (Poland), under the project "Dynamics in spatially confined Hamiltonian systems" leaded by Piotr Bizon.

He is a theoretical physicist working in the interface between mathematics and physics. His research interest focuses on the dynamics of nonlinear evolution equations, studying more specifically turbulence and singularity formation. This research has a broad spectrum of applications ranging from Bose-Einstein condensates, and fluid dynamics, to black holes formation. He published several articles on these topics :

Selected Publications
- A. Biasi, "Self-Similar Solutions to the Compressible Euler Equations and their Instabilities", Communications in Nonlinear Science and Numerical Simulation 103, 106014 (2021).
- A. Biasi, O. Evnin, "Turbulent cascades in a truncation of the cubic Szego equation and related systems", Analysis & PDE 15 (2022) 217-243
- A. Biasi, P. Bizon, O. Evnin, "Solvable cubic resonant systems", Communications in Mathematical Physics 369 (2019) 433

The other chair holders are, by year of arrival :


PNGAntoine Bourget (since October 2021)
Antoine Bourget received his PhD in 2016 from ENS under the supervision of Jan Troost, after which he worked at the University of Oviedo (Spain) and Imperial College London (UK). Since 2021, he is also working at the Commissariat à l’Energie Atomique in Saclay in parallel with the JRC.

His research focuses on high-energy theoretical physics and its interactions with mathematics. The central theme is Quantum Field Theory, which is the basic framework of a substantial part of modern theoretical physics, from particle physics to cosmology and to condensed matter. One central challenge is to understand strong coupling effects, for which Antoine develops methods based on string theory and geometry. These techniques also allow to discover and characterize new conformal field theories.
He is also deeply involved in teaching, outreach and science communication.

Selected Publications
- The Higgs mechanism — Hasse diagrams for symplectic singularities, JHEP 01 (2020) 157, S. Cabrera, J. Grimminger, A. Hanany, M. Sperling, A. Zajac, Z. Zhong.
- Classification of all N≥3 moduli space orbifold geometries at rank 2, SciPost Phys. 9 (2020) 6, 083, P. Argyres and M. Martone.
- (Symplectic) Leaves and (5d Higgs) Branches in the Poly(go)nesian Tropical Rain Forest, JHEP 11 (2020) 124, with M. van Beest, J. Eckhard, S. Schafer-Nameki
- A limit for large R-charge correlators in N=2 theories, JHEP 05 (2018) 074, D. Rodriguez-Gomez, J. Russo.
Orthosymplectic implosions, JHEP 08 (2021) 012, A. Dancer, J. Grimminger, A. Hanany, F. Kirwan, Z. Zhong

More information :
Publications : https://scholar.google.fr/citations?user=eUqUgLoAAAAJ
Website : http://www.antoinebourget.org/
Youtube : https://www.youtube.com/user/antoinebrgt


PNGCyrille Solaro (since August 2021)
Cyrille Solaro obtained his PhD in atom interferometry in 2016 under the supervision of F. Pereira dos Santos at the French metrology institute (LNE-SYRTE, Paris Observatory), where he came to like metrology as a way to test fundamental physics. He has since then continued to develop his interest for high precision measurements in atom interferometry as well as in ultra-precise spectroscopy of atoms, ions and molecules.

During his postdoc at Aarhus University (Denmark) he demonstrated, in collaboration with the group of Michael Drewsen, the metrological relevance of using frequency-comb lasers to perform high-precision stimulated Raman spectroscopy, and to search for new physics beyond the standard model.

This leads him to explore with his JRC project the possibilities of using frequency-comb lasers to perform atom interferometry. This project will eventually open up new possibilities in metrology, sensing of gravito-inertial effects and tests of fundamental physics.

Cyrille joins the atom interferometry team at LKB, collaborating with Saïda Guellati-Khelifa.

Selected Publications
- C. Solaro, C. Debavelaere, P. Clade, S. Guellati-Khelifa, An atom interferometer driven by a picosecond frequency comb, Physical Review Letters, Sept. 2022
- C. Solaro, S. Meyer, K. Fisher, J. C. Berengut, E. Fuchs and M. Drewsen, “Improved isotope-shift-based bounds on bosons beyond the standard model through measurements of the 2D3/2-2D5/2 Interval in Ca+,” Physical Review Letters, vol. 125 p. 123003, Sept. 2020.
- C. Solaro, S. Meyer, K. Fisher, M. V. DePalatis and M. Drewsen, “Direct frequency-comb-driven Raman transitions in the terahertz range,” Physical Review Letters, vol. 120 p. 253601, June 2018.
- X. Alauze, A. Bonnin, C. Solaro, and F. Pereira dos Santos, “A trapped ultracold atom force sensor with a μm-scale spatial resolution,” New Journal of Physics, vol. 20 p. 083014, August 2018.
- C. Solaro, A. Bonnin, F. Combes, M. Lopez, X. Alauze, J.-N. Fuchs, F. Piéchon and F. Pereira dos Santos, “Competition between spin echo and spin self-rephasing in a trapped atom interferometer,” Physical Review Letters, vol. 117 p. 163003, October 2016.


CostaAntonio Costa (since September 2020)
Antonio Carlos Borges Santos da Costa joined our JRC team for his first postdoctoral position.

Antonio obtained his PhD in 2020 under the supervision of Greg Stephens at Vrije Universiteit Amsterdam (Netherlands). He worked on the physics of animal movement behaviour, studying organism scale movements. He uses physics inspired approaches from statistical mechanics and dynamical systems theory, as well as information theory and statistical inference.

He collaborates with the theoretical neuroscience and biophysics team members :
https://www.lpens.ens.psl.eu/research/biophys/biophysique-neuroscience-theoriques/?lang=en
Antonio received in 2021 the DBIO Award for Outstanding Doctoral Thesis Research in Biological Physics, American Physical Society.

Selected Publications
- A. C. Costa, T. Ahamed, D. Jordan, G. Stephens, Maximally predictive ensemble dynamics from data, https://doi.org/10.48550/arXiv.2105.12811
- Hebert, Ahamed, Costa, O’Shaugnessy, Stephens, WormPose : Image synthesis and convolutional networks for pose estimation in C. elegans (preprint) 2020
- T. Ahamed, A. C. Costa, G. Stephens, Capturing the Continuous Complexity of Behaviour in C. elegans, Nature Physics Oct. 2020
- S. Helms, M. Rozemuller, A. C. Costa, L. Avery, G. Stephens, T. Shimizu, Modelling the ballistic-to-diffusive transition in nematode motility variation in exploratory behaviour across species, J. Royal Soc. Interface, Aug. 2019

More information : https://antonioccosta.github.io/


Thomas Boulier (2020-2022)
Thomas received his PhD at ENS Laboratoire Kastler Brossel (Paris) in 2014. He has since occupied international postdoctoral positions, including at the Joint Quantum Institute (USA), at ETHZ in Zurich (Switzerland) and at LCF in Palaiseau (France).

Thomas is an experimental quantum physicist interested in many subjects within quantum optics, condensed matter and AMO physics, with a special interest in Rydberg physics.

His research activities focus on exploring systems of many bosonic particles in strong interaction, and on optically exploiting them to give interactions to photons. He has been working with two types of systems : exciton-polaritons in semiconductors and ultra-cold Rydberg atoms in optical lattices. Thomas’ JRC project aims at combining ideas from both communities to explore Rydberg physics in condensed matter.
Thomas has been part of Nano-THZ team, collaborating with Sukhdeep Dhillon.
https://www.lpens.ens.psl.eu/research/quant/nano-thz/?lang=en

He will be joining INSA in Toulouse, as junior professor in November 2022.

Selected Publications
- C. Morin, J. Tignon, J. Mangeney, S. Dhillon, G. Czajkowski, K. Karpiński, S. Zielińska-Raczyńska, D. Ziemkiewicz, and T. Boulier, Self-Kerr Effect across the Yellow Rydberg Series of Excitons in Cu2O
Phys. Rev. Lett. 129, 137401 – Published Sept. 2022
- T. Boulier, J Maslek, M Bukov, C Bracamontes, E Magnan, S Lellouch, E Demler, N Goldman, JV Porto, Phys. Rev. X 9 (1), 011047 (2019).
- E. A. Goldschmidt, T. Boulier, R. C. Brown, S. B. Koller, J. Young, A. V. Gorshkov, S. L. Rolston and J. V. Porto, Physical Review Letters 116, 113001 (2016).
- T. Boulier, E. Cancellieri, N. D. Sangouard, Q. Glorieux, A. V. Kavokin, D. M. Whittaker, E. Giacobino and A. Bramati, Physical Review Letters 116, 116402 (2016).

More information : https://tboulier.github.io/

Contact us


Jean-Marc Berroir
Labex Director
directeur@phys.ens.fr

Sarah Reemers
Administrative manager of Labex
sarah.reemers@phys.ens.fr

Master in Fundamental Physics

Application
https://applicationicfp.phys.ens.fr

Contact
click here

Scholarship
More information