Allemand co-pioneered single-molecule magnetic-tweezer manipulation of DNA and RNA, using calibrated magnetic forces/torques to measure the torsional and stretching mechanics of nucleic acids and the real-time kinetics of the motor proteins (helicases, polymerases, topoisomerases) that act on them. His joint lab with Vincent Croquette continues to develop new magnetic-tweezer instrumentation (including high-throughput and torque-sensing variants) applied to DNA replication, repair, and RNA processing machinery.

Bakkali-Hassani works within LKB's BEC team on two-dimensional and low-dimensional quantum-gas physics, including superfluid phase transitions and collective excitations in ultracold Bose gases.

Barbosa de Aguiar develops label-free, chemically-selective coherent Raman (CARS/SRS) and computational microscopy — including compressive-sensing-accelerated Raman microspectroscopy and wavefront-shaping through strongly scattering biological tissue — to push spatial and spectral resolution of label-free biomedical imaging, working within Sylvain Gigan's Complex Media Optics team (Photonics, Information & Complexity axis).

Beugnon is one of five permanent members of LKB's Bose-Einstein Condensates team (associated with Jean Dalibard's Atoms and Radiation chair at College de France), studying two-dimensional Bose gases, superfluidity, and box-trapped homogeneous quantum gases as precisely controllable quantum simulators.

The LKB atom interferometry group (also at SYRTE, Observatoire de Paris) develops cold atom inertial sensors including the world's best gyroscopes and gravimeters. Key research (Geiger, Landragin et al.): (1) interleaved cold atom gyroscope with 3.75 Hz sampling and 800ms interrogation (record sensitivity); (2) cold atom gradiometer for gravity gradient mapping; (3) atom chip-based compact sources for inertial navigation; (4) quantum optimal control for robust matter-wave sensing. QAFCA project (PEPR Quantique) on quantum sensors for geoscience and navigation. Note: The main PI is Remi Geiger (CNRS) / Arnaud Landragin, both at SYRTE/Observatoire de Paris (PSL), but LKB atom interferometry team is at ENS site.

Bramati leads the Quantum Fluids of Light team at LKB, studying exciton-polariton superfluids in semiconductor microcavities: quantized vortices, dark solitons, half-solitons behaving as magnetic monopoles, and analogue-gravity phenomena in polariton and photon fluids. The group also develops single-photon sources based on nanoemitters and coordinates the international Q-GAP program with Singapore's NRF on quantum fluids and photonics.

Briant works in LKB's optomechanics and quantum-measurement team, using high-finesse Fabry-Perot cavities coupled to mirror/membrane mechanical resonators to study radiation-pressure back-action, quantum noise, and force sensing near the standard quantum limit, alongside Pierre-Francois Cohadon and Antoine Heidmann.

Michel Brune leads the Rydberg atoms / cavity QED group at LKB. Research: (1) circular Rydberg atoms trapped in high-finesse microwave cavities — quantum non-demolition measurement of photons, quantum state engineering; (2) fundamental quantum optics: decoherence, entanglement, quantum jumps, Schrödinger cat states; (3) quantum sensing of cavity fields with single atoms as probes. This group pioneered cavity QED experiments leading to the 2012 Nobel Prize (Haroche). Brune heads the laboratory.

Cherroret develops the theory of multiple light scattering, Anderson localization, and quantum-fluid-of-light phenomena in disordered polariton/photonic systems, supporting the experimental polariton-fluid programme led by Alberto Bramati's team.

Clade works on atom-recoil interferometry, using Bloch-oscillation-enhanced light-pulse atom interferometers to measure the photon recoil velocity of atoms with extreme precision, from which the fine-structure constant is extracted as one of the most stringent tests of QED and the Standard Model. This precision-metrology approach is a core exemplar of atom-interferometric quantum sensing at LKB.