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Quantum optics in synthetic photonic materials

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Français - Anglais

Date Limite Candidature : vendredi 6 novembre 2020

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General information

Reference : UMR9001-SYLRAV-001
Workplace : PALAISEAU,PALAISEAU
Date of publication : Friday, October 16, 2020
Scientific Responsible name : Sylvain Ravets
Type of Contract : PhD Student contract / Thesis offer
Contract Period : 36 months
Start date of the thesis : 1 January 2021
Proportion of work : Full time
Remuneration : 2 135,00 € gross monthly

Description of the thesis topic

This experimental thesis aims to demonstrate quantum correlations in polariton microcavity arrays with the general objective of generating highly correlated N-photon states, and emulating quantum systems in the driven-dissipative regime. The goal is two-fold: building synthetic materials to help understand complex quantum phenomena by studying them in well-controlled systems, and using these collective effects as a resource applicable to quantum technologies.
The candidate will measure the optical properties of synthetic materials manufactured within the C2N clean room, in order to form arrays of "light traps" operating in the strong coupling regime between photons and excitons. The technological challenge will be to generate sufficient interactions within these materials, in order to generate strong quantum correlations between photons escaping from these structures. Optical signatures of this quantum behavior will then be revealed as a function of the dimensionality of the system (1D or 2D) or the topology of the network bands.
This project requires a strong taste for laboratory work, skills in optical spectroscopy and cryogenics, as well as a good knowledge of quantum optics and solid physics. The interpretation of the results will be based on numerical simulations that the candidate will perform himself.

Work Context

The C2N (Centre for Nanosciences and Nanotechnologies) is a joint research unit of the University of Paris Saclay and the CNRS located in Palaiseau (91). With approximately 410 people, C2N research themes are photonics, nanoelectronics, materials, microsystems and nanobiofluidics. The candidate will work in the photonics department, in the GOSS research group and under the supervision of Sylvain Ravets (research fellow at CNRS) and in tight collaboration with Jacqueline Bloch (research director at CNRS).

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