Jean-Baptiste Béguin's research at QUANTOP centers on optical nanofibre-trapped atom interfaces for quantum memories and quantum networks. Research: (1) nanofibre-trapped cold Cs atoms — quantum noise spectroscopy of atom-light spin coupling; (2) single-photon storage and retrieval from nanofibre-guided modes; (3) sub-Poissonian atom loading. Key direction in CBQS center for quantum sensing via coherent atom-photon interfaces.

Le Jeannic works on heralded single-photon sources and atom-photon quantum-network interfaces at LKB, contributing to the hybrid quantum-network line led by Julien Laurat, with an emphasis on high-rate, high-fidelity photonic entanglement distribution.

Patrick Ledingham's Hybrid Quantum Networks Lab develops light-matter interfaces for large-scale quantum photonic networks. Research: (1) warm and cold atomic ensemble quantum memories (ORCA protocol in warm Rb vapour) for telecom-wavelength photon storage; (2) atom-photon entanglement generation; (3) multiplexed quantum memories for repeater nodes. Key for quantum sensing via atom-photon entanglement and quantum repeater architectures.

Urvoy develops cold-atom/optical-nanofiber quantum interfaces for atom-photon entanglement and quantum-memory applications, part of LKB's quantum-network research line alongside Julien Laurat and Hanna Le Jeannic.