Antoine Bourget (from 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.
The Higgs mechanism — Hasse diagrams for symplectic singularities, JHEP 01 (2020) 157, with Santiago Cabrera, Julius Grimminger, Amihay Hanany, Marcus Sperling, Anton Zajac and Zhenghao Zhong.
Classification of all N≥3 moduli space orbifold geometries at rank 2, SciPost Phys. 9 (2020) 6, 083, with Philip Argyres and Mario Martone.
(Symplectic) Leaves and (5d Higgs) Branches in the Poly(go)nesian Tropical Rain Forest, JHEP 11 (2020) 124, with Marieke van Beest, Julius Eckhard and Sakura Schafer-Nameki
A limit for large R-charge correlators in N=2 theories, JHEP 05 (2018) 074, with Diego Rodriguez-Gomez and Jorge Russo.
Orthosymplectic implosions, JHEP 08 (2021) 012, with Andrew Dancer, Julius Grimminger, Amihay Hanany, Frances Kirwan and Zhenghao Zhong
Cyrille Solaro (from 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-Khélifa.
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.
The other chair holders are, by year of arrival:
Antonio Costa (2020-2022)
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:
WormPose: Image synthesis and convolutional networks for pose estimation in C. elegans, Hebert, Ahamed, Costa, O’Shaugnessy, Stephens. (preprint) 2020
Tosif Ahamed, Antonio Carlos Costa, Greg Stephens, Capturing the Continuous Complexity of Behaviour in C. elegans, Nature Physics Oct. 2020
Stephen Helms*, Mathijs Rozemuller*, Antonio Carlos Costa*, Leon Avery, Greg Stephens, Thomas Shimizu, Modelling the ballistic-to-diffusive transition in nematode motility variation in exploratory behaviour across species, J. Royal Soc. Interface, Aug. 2019
Antonio Carlos Costa, Tosif Ahamed, Greg Stephens, Adaptive locally-linear models of complex dynamics, PNAS, Jan. 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 joined Nano-THZ team, collaborating with Sukhdeep Dhillon.
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).
T. Boulier, M. Bamba, A. Amo, C. Adrados, A. Lemaitre, E. Galopin, I. Sagnes, J.Bloch, C. Ciuti, E. Giacobino and A. Bramati, Nature Communications 5, 3260, (2014).
More information: https://tboulier.github.io/