Post-doctoral researcher (M/F) : spin-photon interfaces for quantum information
New
- Researcher in FTC
- 24 mounth
- Doctorate
This offer is available in English version
This offer is open to people with a document recognizing their status as a disabled worker.
Offer at a glance
The Unit
Centre de Nanosciences et de Nanotechnologies
Contract Type
Researcher in FTC
Working hHours
Full Time
Workplace
91120 PALAISEAU
Contract Duration
24 mounth
Date of Hire
01/07/2026
Remuneration
Gross salary between 3132.83 € and 4343,20 € per month, depending on the experience
Apply Application Deadline : 22 April 2026 23:59
Job Description
Missions
Our group on Solid-State Quantum Optics, at the Center for Nanoscience & Nanotechnology, has developed a strong expertise in harnessing light-matter interaction at the most fundamental level. We develop crucial resources for optical quantum technologies, including high-performance single-photon sources based on semiconductor quantum dots (QDs) in cavities [1]. In particular, we have developed efficient interfaces between a single material qubit (the spin of a single charge in a quantum dot) and single photonic qubits (the polarization of single photons) [2]. Meanwhile, we have acquired a crucial expertise in the solid-state physics governing both the spin dynamics and the QD-photon interactions [3].
Such spin-photon interfaces have long been envisioned, for example, to implement photon-mediated operations between distant spins, as well as spin-mediated operations between single photons.
In this context, the main missions of the recruited post-doctoral researcher will be :
- To develop experiments using the spin-photon interfaces as receivers of incoming photons, for the implementation of spin-photon and photon-photon logic gates.
- To increase the spin qubit coherence by reducing the magnetic fluctuations of the environment, through techniques analogous to Raman cooling.
- To demonstrate new forms of entanglement, through which a spin qubit is used to successively entangle several incoming photons.
[1] Nature Photonics 10, 340 (2016); Nature Photonics 13, 803 (2019); Optica Quantum 3, 289 (2025)
[2] Nature Communications 6, 6236 (2015); Nature Photonics 17, 582 (2023); Nature Communications 15, 598 (2024)
[3] Physical Review Letters 134, 036902 (2025); Physical Review Applied 24, 024047 (2025); arXiv:2503.23593 (2025)
Activity
- Design and lead quantum optics experiments based on the resonant excitation and coherent optical pumping of artificial atoms (semiconductor quantum dots)
- Manipulate magneto-optical cryostats, pulsed and continuous-wave lasers, ultrafast electro-optical modulation systems, as well as detectors and electronic cards allowing the analysis of multi-photon correlations.
- Analyse experimental data mixing both quantum optics and solid-state physics phenomena
- Supervise PhD students and interns
- Ensure an efficient collaboration and information sharing with the other activities within the GOSS group and more broadly within QDLight, notably to benefit from the theoretical expertise required for the data analysis.
Your Profil
Skills
We are looking for excellent candidates (M/F) with an experimental PhD thesis in one (or more) of the following topics : quantum technologies, quantum optics, solid-state quantum physics, light-matter interactions, nanophotonics...
Profile : proactive personality with a taste for initiative, autonomy and teamwork, as well as a strong potential to learn new techniques.
An experience in instrumentation and in the interfacing of laboratory instruments would constitute an asset.
Your Work Environment
This work takes place within the GOSS group of the Photonics Department in C2N, where a strong activity in quantum optics and nanophotonics is developed in a collaborative fashion, on a diversity of research themes (e.g. light-matter interfaces, solid-state physics in semiconductors, polariton quantum fluids, nanophononics and ultrafast nano-acoustics...)
Beyond the experiments on fundamental physics, the activities of the recruiting team include an activity towards potential industrial transfers (self-calibrating instruments for polarization control), and an activity on theory (simulations of cavity-QED devices), which both represent assets for the present post-doctoral position.
The offered position is funded by the OQuLus project, within the national program "Quantum Technologies (France 2030). The OQuLus consortium gathers expertise from french groups with internationally-recognized results, going from semiconductor physics to integrated optics. It aims at realizing two prototypes of photonic quantum computers exploiting the encoding of information on quantum light, either usiing "discrete variables" (photon number superpositions) or "continuous variables" (field quadratures)
Compensation and benefits
Compensation
Gross salary between 3132.83 € and 4343,20 € per month, depending on the experience
Annual leave and RTT
44 jours
Remote Working practice and compensation
Pratique et indemnisation du TT
Transport
Prise en charge à 75% du coût et forfait mobilité durable jusqu’à 300€
About the offer
| Offer reference | UMR9001-LOILAN-007 |
|---|---|
| CN Section(s) / Research Area | Micro and nanotechnologies, micro and nanosystems, photonics, electronics, electromagnetism, electrical energy |
About the CNRS
The CNRS is a major player in fundamental research on a global scale. The CNRS is the only French organization active in all scientific fields. Its unique position as a multi-specialist allows it to bring together different disciplines to address the most important challenges of the contemporary world, in connection with the actors of change.
Create your alert
Don't miss any opportunity to find the job that's right for you. Register for free and receive new vacancies directly in your mailbox.