Theoretical study of the coherence properties of open Bose-Einstein condensates (M/F)

CNRS; France; Sur place; EUR 35 000 - 45 000; Plein temps

Résumé du poste

A prestigious research organization in France is seeking a postdoctoral researcher to investigate the physical properties of Bose-Einstein condensates in semiconductor microcavities. This role involves developing stochastic numerical simulations, helping to reproduce experimental results, and contributing to the theoretical framework of the research. Candidates should have a strong background in theoretical physics and numerical simulations, and collaboration with experimental teams is a plus. An exciting opportunity to explore advanced physics topics awaits.

Qualifications

• Strong expertise in theoretical physics and numerical simulations required.
• Experience collaborating with experimentalists is highly desirable.

Responsabilités

• Develop stochastic numerical simulations to calculate phase fluctuations.
• Reproduce experimental results and provide insights.
• Explore the phase diagram and guide future experiments.
• Conceive novel experiments related to polariton condensates.

Connaissances

Theoretical physics

Numerical simulations

Collaboration with experimentalists

Formation

PhD in Physics or related field

Description du poste

Organisation/Company CNRS Department Centre de Nanosciences et de Nanotechnologies Research Field Physics Researcher Profile Recognised Researcher (R2) Country France Application Deadline 8 Dec 2025 - 23:59 (UTC) Type of Contract Temporary Job Status Full-time Hours Per Week 35 Offer Starting Date 1 Feb 2026 Is the job funded through the EU Research Framework Programme? Horizon Europe - ERC Is the Job related to staff position within a Research Infrastructure? No

Offer Description

The project will focus on the physical properties of Bose-Einstein condensates produced experimentally in semiconductor microcavities operating in the strong coupling regime. The quasiparticles generated in these systems are excitonic polaritons that can occupy macroscopically a given quantum state and form a Bose-Einstein condensate. Remarkably, the driven dissipative nature of the system has a dramatic impact on the physical properties of the system. For instance universal scaling laws corresponding to the Kardar-Parisi-Zhang (KPZ) universality class can appear in the spatio-temporal decay of the coherence of these condensates, showing that they are very different from their atomic counterpart (closed systems in equilibrium). Jacqueline Bloch and Sylvain Ravets team is conducting optical experiments on polariton condensates and has made pioneering contributions by experimentally observing KPZ physics on 1D condensates. The recruitment of a postdoctoral researcher aims to develop theoretical support for this research.

The candidate will develop stochastic numerical simulations to calculate phase fluctuations in polariton condensates under excitation conditions and with microscopic parameters close to those of the experiments.

The objectives of this project are:

• to reproduce the experimental results and provide further physical insights
• to explore the phase diagram of polariton condensates and guide future experiments
• to conceive novel experiments to further explore the physics of polariton condensates

The candidate will work within the C2N experimental team and will thus be able to become fully familiar with the complexity of the experiments and the technical details of the measurements. He or she will work in close collaboration with the theoretical team of Anna Minguzzi and Léonie Canet based in Grenoble.

The candidate must have solid expertise in theoretical physics and numerical simulations. It is highly desirable that the candidate has already worked in collaboration with experimentalists.