Post-doc: spin-photon interfaces for quantum information

Pepr Quantique; Palaiseau; On-site; EUR 30,000 - 45,000; Full time

Job summary

Pepr Quantique is offering a post-doctoral position in Palaiseau, Île-de-France, starting on July 1, 2026, for a duration of two years. The successful candidate will work within the GOSS group of the Photonics Department, focusing on quantum optics and nanophotonics.

The role involves developing experiments with spin-photon interfaces and engaging in theoretical simulations as part of the OQuLus project, which aims to design prototypes of photonic quantum computers. Candidates must have experience in related fields.

Qualifications

• Experience in quantum optics and nanophotonics research.
• Ability to develop experiments related to spin-photon interfaces.
• Understanding of photonic quantum computers and associated technologies.

Responsibilities

• Develop experiments using spin-photon interfaces.
• Increase spin qubit coherence using magnetic fluctuation reduction techniques.
• Demonstrate new forms of entanglement with incoming photons.

Job description

• Post-doc

Deadline 22/04/2026

Starting 01/07/2026

Duration: 2 years

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 PEPR Quantique. 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 using "discrete variables" (photon number superpositions) or "continuous variables" (field quadratures).

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