Romain's personal page
Short bio
Romain graduated at Ecole polytechnique in 2006 and obtained a quantum
physics master degree at ENS in 2007. He then joined the group of Luca
Guidoni at Laboratoire Matériaux et Phénomènes Quantiques for his PhD,
working on miniaturized ion traps for quantum information experiments.
After obtaining his PhD in 2010 he joined the group of Hélène Perrin at
Laboratoire de physique des lasers as a post-doc where he learned how to
produce Bose-Einstein condensates. He obtained later an associate professor
position in the same group to study out-of-equilibrium superfluids. He
defended his habilitation thesis in 2023 presenting his contributions to
the understanding of low-dimensional superfluids. In 2024 he obtained a
full professor position at laboratoire de physique des interactions ioniques
et moléculaires where he will start a new line of research on the physics
of ultracold neutral plasmas.
Research interests
Romain is interested in the study of non-linear physics phenomena, such as the propagation of solitary waves, shocks or the emergence of collective phenomena. In particular, he has studied the physics of rotating superfluids, described by the Gross-Pitaevskii equation and realized in the laboratory by a Bose-Einstein condensate confined in a bubble-shaped trap. He is currently building a new experiment to study the dynamics of ions, atoms and electrons in an ultra-cold neutral Calcium plasma. More generally he is interested in the use of atom-light interaction to control atomic gases at the microscopic scale realizing in the laboratory a analogue quantum simulator for larger systems.
Detailled CV
Education
- 2023 Habilitation, Université Sorbonne Paris Nord, Villetaneuse
- 2010 PhD in physics, Université Paris Diderot, Paris
- 2007 Master degree, Ecole normale supérieure, Paris
- 2007 Engineering degree, Ecole polytechnique, Palaiseau
Employment
- since Sept. 2024 full professor, Laboratoire de physique des interactions ioniques et moléculaires, Aix-Marseille Université
- 2012-2024 associate professor, Laboratoire de physique des lasers, Université Sorbonne Paris Nord
- 2010-2012 post-doctoral research, Laboratoire de physique des lasers, Université Sorbonne Paris Nord
- 2007-2010 PhD student, Laboratoire matériaux et phénomènes quantiques, Université Paris Diderot
Responsibilities
- 2020-2023 French research agency (ANR), member of the Quantum Technologies committee (CES47), vice president for the 2023 call
- 2019-2023 national council for the atomic, molecular and optics division (CNU30)
- 2018-2024 co-director of the engineering degree in telecommunications, Sup Galilée engineering school
Research grants
- 2025-2027 A*midex, UNCaP: ultracold neutral calcium plasmas, principal investigator
- 2023-2026 ANR, VORTECS: superfluid vortex turbulence on a curved surface, coordinator, in collaboration with S. Nazarenko
- 2021-2023 SIRTEQ, HydroLive: real-time out-of-equilibrium hydrodynamics in quantum fluids, coordinator, in collaboration with Q. Glorieux and N. Pavloff
- 2016-2017 First-TF, Microwave feld imaging by an atomic probe
- 2015-2016 Université Sorbonne Paris Nord, µWafer, micro-wave atomic Feshbach resonance
Publication list
I have co-authored 30 works in international peer reviewed journals and 2 conference proceedings. For more details see the list below or my Web of Science profile.
2025
- A. K. Saha and R. Dubessy Characterizing far from equilibrium states of the one-dimensional nonlinear Schrödinger equation. SciPost Phys. Core 8, 028 (2025)
- R. Dubessy and H. Perrin Perspectives: Quantum gases in bubble traps. AVS Quantum Sci. 7, 010501 (2025)
2024
- R. Sharma, D. Rey, L. Longchambon, A. Perrin, H. Perrin, and R. Dubessy Thermal melting of a vortex lattice in a quasi two-dimensional Bose gas. Phys. Rev. Lett. 133, 143401 (2024) Selected as Editor's suggestion and highlighted by CNRS.
2023
- I. Reyes-Ayala, M. Miotti, M. Hemmerling, R. Dubessy, H. Perrin, V. Romero-Rochin and V.S. Bagnato Carnot Cycles in a Harmonically Confined Ultracold Gas across Bose–Einstein Condensation. Entropy 25, 311 (2023)
2022
- D. Rey, S. Thomas, R. Sharma, T. Badr, L. Longchambon, R. Dubessy and H. Perrin Loading a quantum gas from a hybrid dimple trap to a shell trap. J. Appl. Phys. 132, 214401 (2022)
- Y. Guo, E. Mercado Gutierrez, D. Rey, T. Badr, A. Perrin, L. Longchambon, V.S. Bagnato, H. Perrin and R. Dubessy Expansion of a quantum gas in a shell trap. New J. Phys. 24, 093040 (2022)
2021
- A. K. Saha, and R. Dubessy Dynamical phase diagram of a one-dimensional Bose gas in a box with a tunable weak link: From Bose-Josephson oscillations to shock waves. Phys. Rev. A 104, 023316 (2021)
- M. de Goër de Herve, Y. Guo, C. De Rossi, A. Kumar, T. Badr, R. Dubessy, L. Longchambon and H. Perrin A versatile ring trap for quantum gases. J. Phys. B 54, 125302 (2021)
- R. Dubessy, J. Polo, H. Perrin, A. Minguzzi, and M. Olshanii Universal shock-wave propagation in one-dimensional Bose fluids. Physical Review Research 3, 013098 (2021)
2020
- Y. Guo, R. Dubessy, M. de Goër de Herve, A. Kumar, T. Badr, A. Perrin, L. Longchambon and H. Perrin Supersonic rotation of a superfluid: a long-lived dynamical ring. Phys. Rev. Lett. 124, 025301 (2020) Selected as Editor's suggestion, associated to a synopsis in Physics and highlighted by CNRS.
2019
- J. Polo Gomez, R. Dubessy, P. Pedri, H. Perrin and A. Minguzzi Oscillations and decay of superfluid currents in a one-dimensional Bose gas on a ring. Phys. Rev. Lett. 123, 195301 (2019)
- T. Badr, D. Ben Ali, J. Seaward, Y. Guo, F. Wiotte, R. Dubessy, H. Perrin and A. Perrin Comparison of time profiles for the magnetic transport of cold atoms. Appl. Phys. B 125, 102 (2019)
2018
- D. M. Segal, V. Lorent, R. Dubessy and B. Darquié Studying fundamental physics using quantum enabled technologies with trapped molecular ions. J. Mod. Opt. 65, 490-500 (2018)
- A. Kumar, R. Dubessy, T. Badr, C. De Rossi, M. de Goër De Herve, L. Longchambon and H. Perrin Producing superfluid circulation states using phase imprinting. Phys. Rev. A 97, 043615 (2018)
- R. Dubessy, C. De Rossi, M. de Goër De Herve, T. Badr, A. Perrin, L. Longchambon and H. Perrin Local correlations reveal the superfluid to normal boundary in a trapped two-dimensional quantum gas. AIP Conference Proceedings 1936, 020027 (2018)
2017
- C. De Rossi, R. Dubessy, K. Merloti, M. de Goër de Herve, T. Badr, A. Perrin, L. Longchambon and H. Perrin The scissors oscillation of a quasi two-dimensional Bose gas as a local signature of superfluidity. Journal of Physics: Conference Series 793, 012023 (2017)
- D. Ben Ali, T. Badr, T. Brézillon, R. Dubessy, H. Perrin and A. Perrin Detailed study of a transverse field Zeeman slower. Journal of Physics B: Atomic, Molecular and Optical Physics 50, 055008 (2017)
2016
- C. De Rossi, R. Dubessy, K. Merloti, M. De Goër de Herve, T. Badr, A. Perrin, L. Longchambon and H. Perrin Probing superfluidity in a quasi two-dimensional Bose gas through its local dynamics. New Journal of Physics 18, 062001 (2016)
2014
- R. Dubessy, C. De Rossi, T. Badr, L. Longchambon and H. Perrin Imaging the collective excitations of an ultracold gas using statistical correlations. New Journal of Physics 16, 122001 (2014) (Fast Track Communication) video abstract
- B. Dubost, R. Dubessy, B. Szymanski, S. Guibal, J.-P. Likforman and L. Guidoni Isotope shifts of natural Sr+ measured by laser fluorescence in a sympathetically cooled Coulomb crystal. Phys. Rev. A 89, 032504 (2014)
2013
- K. Merloti, R. Dubessy, L. Longchambon, M. Olshanii and H. Perrin Breakdown of scale invariance in a quasi-two-dimensional Bose gas due to the presence of the third dimension. Phys. Rev. A 88, 061603(R) (2013)
- K. Merloti, R. Dubessy, L. Longchambon, A. Perrin, P.-E. Pottie, V. Lorent and H. Perrin A two-dimensional quantum gas in a magnetic trap. New Journal of Physics 15, 033007 (2013)
2012
- R. Dubessy, T. Liennard, P. Pedri and H. Perrin Critical rotation of an annular superfluid Bose-Einstein condensate. Phys. Rev. A 86, 011602(R) (2012)
- B. Szymanski, R. Dubessy, B. Dubost, S. Guibal, J.-P. Likforman and L. Guidoni Large two dimensional Coulomb crystals in a radio frequency surface ion trap. Appl. Phys. Lett. 100, 171110 (2012)
- R. Dubessy, K. Merloti, L. Longchambon, P.-E. Pottie, T. Liennard, A. Perrin, V. Lorent and H. Perrin Rubidium-87 Bose-Einstein condensate in an optically plugged quadrupole trap. Phys. Rev. A 85, 013643 (2012) Erratum
2011
- T. Coudreau, B. Douçot, R. Dubessy, D. Andreoli and P. Milman Robust preparation and manipulation of protected qubits using time-varying hamiltonians. Phys. Rev. Lett. 107, 030502 (2011)
2010
- Q. Glorieux, R. Dubessy, S. Guibal, L. Guidoni, J. P. Likforman, T. Coudreau and E. Arimondo Double-Lambda microscopic model for entangled light generation by four-wave-mixing. Phys. Rev. A 82, 033819 (2010)
2009
- R. Dubessy, T. Coudreau and L. Guidoni Electric field noise above surfaces: A model for heating-rate scaling law in ion traps. Phys. Rev. A 80, 031402(R) (2009)
- S. Removille, R. Dubessy, B. Dubost, Q. Glorieux, T. Coudreau, S. Guibal, J.-P. Likforman and L. Guidoni Trapping and cooling of Sr$^{+}$ ions: strings and large clouds. J. Phys. B 42, 154014 (2009)
- S. Removille, R. Dubessy, Q. Glorieux, S. Guibal, T. Coudreau, L. Guidoni and J.-P. Likforman Photoionisation loading of large sr+ ion clouds with ultrafast pulses. Appl. Phys. B 42, 47-52 (2009)
- N. Sangouard, R. Dubessy and C. Simon Quantum repeaters based on single trapped ions. Phys. Rev. A 79, 042340 (2009)
2008
- O. Morizot, L. Longchambon, R. Kollengode Easwaran, R. Dubessy, E. Knyazchyan, P. E. Pottie, V. Lorent and H. Perrin. Influence of the radio-frequency source properties on rf-based atom traps. EPJ D 47, 209-214 (2008)