Pierre-François Cohadon leads the optomechanics and quantum measurements group at LKB (ENS site). Research: (1) mechanical quantum systems and back-action-evading measurement; (2) gravitational wave detector enhancement — white-light cavity proposals to extend GW sensitivity; (3) quantum optomechanical sensing of forces and fields. The group was key to the LKB optomechanics tradition and is affiliated with Virgo/LIGO enhancement proposals.

Courty provides theoretical support to LKB's optomechanics and quantum-measurement experiments, working on quantum-noise theory for radiation-pressure coupled cavities and standard-quantum-limit-evading measurement schemes.

Croquette is a co-inventor of magnetic-tweezer single-molecule biophysics, applying it to helicase/topoisomerase mechanochemistry, DNA replication, and nucleic-acid mechanics; his group also develops complementary single-molecule readouts (stereo darkfield interferometry, mass photometry-adjacent tracking) for sub-nanometer 3D localization. He continues active, well-cited methodological development (e.g., recent reviews of magnetic-tweezer principles) alongside Jean-Francois Allemand.

Jean Dalibard's BEC group at LKB studies quantum gases, BEC, and strongly correlated quantum systems. Research: (1) 2D Bose gases and Berezinskii-Kosterlitz-Thouless transition; (2) gauge fields for neutral atoms — synthetic magnetism; (3) quantum simulation with ultracold atoms. Dalibard is a foundational figure in cold-atom physics; his group at LKB/Collège de France is relevant through quantum gas experiments tied to quantum simulation and precision measurement. Borderline case included given BEC foundations for sensing.

Deleglise works on cavity optomechanics and microwave-to-optical photon transduction, aiming to coherently interconnect superconducting-circuit and optical-photon quantum-network nodes; he is also affiliated with LPENS' Quantic team on circuit-QED and bosonic-code quantum error correction.

Dotsenko is a permanent member of LKB's Rydberg-atom cavity-QED team (successor to Haroche/Brune's circular-Rydberg-atom programme), using long-lived circular Rydberg states strongly coupled to microwave photons in high-Q cavities for quantum non-demolition measurement, entanglement generation, and microwave-photon-number quantum sensing.

Douillet works on precision spectroscopy of cold trapped molecular hydrogen ions, developing laser-cooling and rotational-state-selection techniques to improve the accuracy of tests of molecular QED alongside Laurent Hilico.

Rémi Geiger (CNRS DR, SYRTE/Observatoire de Paris; IUF 2020) leads atom interferometry for inertial sensing. Research: (1) interleaved cold-atom gyroscope — world record 3.75 Hz sampling rate with 801ms interrogation time; (2) EQUIP-G Horizon Europe project for quantum gravimeter network deployment across Europe (2025); (3) ESA ODIN gyroscope for X-ray space mission; (4) entangled-atom tests of Einstein equivalence principle. Key figure in precision cold-atom inertial sensors. Note: formally at SYRTE (PSL/Obs. Paris), entered under ENS (same PSL network).

Gerbier is a permanent researcher in LKB's BEC team, working on spinor and lattice-confined Bose-Einstein condensates and their use as quantum simulators of strongly-correlated many-body physics.

Sylvain Gigan's PICO (Photonics, Information, and Complexity) group focuses on imaging through and with complex and scattering media. Research: (1) wavefront shaping through scattering media — adaptive optics and transmission matrix approaches for deep-tissue fluorescence imaging; (2) multimode quantum optics through complex media — pushing quantum light through scattering and multi-mode fibres; (3) analogue computing with random optical scattering media. Key for biosensing: deep tissue imaging at high spatial resolution and quantum-enhanced light manipulation.