Post-doctoral position on spin-photon interfaces (France)

Post-doctoral position on spin-photon interfaces (France)

CNRS

Summary

Our group on Solid State Quantum Optics, at the Center for Nanoscience & Nanotechnology (C2N), has developed a strong expertise in harnessing light-matter interaction at the most fundamental level. Within the joint laboratory QDlight with the deep-tech company Quandela, we develop crucial resources for optical quantum technologies, including high-performance single-photon sources (1,2,3). In parallel, we have developed efficient interfaces between a single material qubit (the spin of a single charge in a semiconductor quantum dot (QD) and single photonic qubits (the polarization of a single photon) (4,5,6). We have also acquired an important expertise in the understanding of the quantum and solid-state physics governing the QD-photon interactions (7-10).

Such spin-photon interfaces have long been envisioned, for example, to engineer photon-mediated operations between distant spins, as well as spin-mediated operations between single photons. One of our main objectives is to develop experiments using these devices as receivers of incoming photons, as required for the future implementation of deterministic spin-photon and photon-photon gates. By doing so, we aim at demonstrating new strategies of entanglement, where the spin qubit is used to entangle successive incoming photons. In parallel, an important challenge is to implement protocols improving the spin coherence, i.e. increasing the memory time of the spin qubit, for successfully entangling more and more photons with the same solid-state spin.

Profile

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.