PhD, post docs and Master training positions are available in our group. Come and visit us in the lab!

NEW! Two post-doc positions are available in the frame of two ANR projects, to work either on the Sodium or on the Rubidium project.

Post-doc offer 1: Dynamics of 1D Bose gases

The Bose-Einstein condensate group of LPL is an expert in the dynamics of quantum gases. We offer a post-doc position to work on the sodium project, where we produce degenerate quantum gases on top of an atom chip. The extremely elongated trap geometry offered by the chip design allows to reach the unidimensional regime. The mid-term goal of the project aims at investigating out-of-equilibrium physics with these systems. The project is funded by ANR Quantum-SOPHA.

Main activities

  • Setting up a 1D box optical potential.
  • Study out-of-equilibrium dynamics after a quench.
  • Investigate 1D atom transport in a tailored potential.

Application requirements

  • Applicants should have completed their PhD before the end of 2023.
  • Strong experience in experimental cold atoms physics.
  • Efficient teamwork.

Contract

  • Duration: 18 months. Extensions can be envisioned thanks to applications to local, national and EU fundings.
  • Salary: from 2930 to 3370 euros gross monthly depending on experience.
  • Planned start: January 2024

Environment

  • The LPL, located on the campus of University Sorbonne Paris Nord at less than 30 minutes from the center of Paris, gathers about 80 people on five research axes spanning metrology to bio-physics. About 20 people are currently members of the quantum gases axis, working on one of the five experiments.
  • The Sodium team currently comprises two PhD students (1st and 4th year), a research engineer and two researchers.
  • The laboratory hosts four other cold atom experiments and various physics projects including fundamental ones and applications. Electronic, mechanical and optical workshops support our activities.

To apply, contact us by email: Aurélien Perrin / Hélène Perrin.

The position will remain open until filled.

Post-doc offer 2: Vortex turbulence on a curved surface

The BEC group at LPL is an expert in superfluid dynamics in low dimensions. We operate an original BEC machine enabling the production of two-dimensional atomic rubidium superfluids trapped onto a curved shell-shaped surface using adiabatic potentials, resulting in a very smooth and highly tunable environment [1]. This enables the study of fast rotating superfluids in a new supersonic regime [2]. Recently we implemented a protocol to compensate the gravitational potential allowing the superfluid to expand onto the curved surface [3]. We are now in a position to combine these two tools to study for the first time the physics of a superfluid rotating on a curved surface and address the analogy with atmospheric fluid dynamics.

[1] Merloti et al., New Journal of Physics 15, 033007 (2013)

[2] Guo et al., Phys. Rev. Lett. 124, 025301 (2020)

[3] Guo et al., New Journal of Physics 24, 093040 (2022)

We offer a 2-year post-doctoral position (ANR funded), to start in 2024, to investigate this new topic and drive the current experimental developments:

  • We are currently developing new imaging systems to improve our current optical resolution. The post-doc will supervise the installation of a new laser system to demonstrate in situ vortex imaging, a key asset for the study of vortex turbulence.
  • We are interested in strongly out-of-equilibrium dynamics of a two-dimensional superfluid on a curved surface: the post-doc will contribute to the study of the emergence of turbulent behavior in a rotating frame.

Environment: The LPL, located on the campus of University Sorbonne Paris Nord at less than 30 minutes from the center of Paris, gathers about 80 people on five research axes spanning metrology to bio-physics. About 20 people are currently members of the quantum gases axis, working on one of the five experiments. The post-doc will join the Rubidium team, currently comprising one researcher, two associate professors and two PhD students (1st year and 3rd year). We also benefit from the help of a research engineer. The experiment is currently funded by the ongoing ANR project VORTECS (2023-2026), in close collaboration with the theory group of Sergey Nazarenko (Nice).

Profile: We are looking for a highly motivated candidate with an expertise in cold atoms, atomic physics or quantum optics. A previous experience on an ultra-cold atom experiment will be particularly appreciated.

Position details: We offer a 24 months fixed term contract starting in early 2024, with a salary from 2930 to 3370 euros gross monthly depending on experience. Extensions can be envisioned thanks to applications to local, national and EU fundings.

To apply, contact us by email: Romain Dubessy / Hélène Perrin.

The position will remain open until filled.

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