Graham is a theoretical physicist whose phenomenological proposals directly motivate several leading quantum-sensing experiments -- co-designing the MAGIS atom-interferometer program for gravitational waves and ultralight dark matter, and the DMRadio lumped-element axion search -- bridging fundamental theory with concrete experimental sensor concepts rather than running his own lab. [Included as a borderline/theory-side match per filter guidance; kept for review.]

Experimental astroparticle physicist searching for dark matter with noble liquid detectors. Directions: (1) DarkSide-20k — liquid argon TPC at INFN Gran Sasso targeting WIMP dark matter with 20-tonne active volume; (2) development of cryogenic SiPM photon detection for LAr detectors; (3) low-background detector techniques and radon mitigation; (4) argon purification and light yield optimization. Argonne joint appointment.

Grange leads the Optical Nanomaterial Group at ETH, developing nonlinear materials for quantum photonic integrated circuits. Research directions: (1) Barium titanate (BTO) nanophotonics — scalable CMOS-compatible BTO thin-film integrated circuits exploiting large χ(2) nonlinearity for quantum entangled photon-pair generation via SPDC; (2) Lithium niobate on insulator (LNOI) — quantum photonic integrated circuits for heralded single-photon sources and electro-optic transduction; (3) Second-harmonic generation sensing — SHG-active nanocrystals as contrast agents and phase-sensitive probes in biological imaging; (4) On-chip entangled photon sources for quantum communication and sensing. Strong quantum sensing application in nonlinear optical readout of quantum states.

Philippe Grangier is a pioneer of quantum optics and quantum information at the Laboratoire Charles Fabry (IOGS/École Polytechnique). Research: (1) foundations of quantum mechanics: single photon experiments, Bell tests, quantum non-demolition measurement; (2) quantum optics and quantum information — continuous variables, entanglement generation, quantum cryptography; (3) Rydberg atom experiments (in collaboration with Browaeys). Coordinator of SIRTEQ network (700+ quantum researchers in Île-de-France). Closely connected to Pasqal spinoff. Key for quantum sensing foundations.

Grassellino directs the DOE's SQMS Center, a Fermilab-Northwestern-led national quantum initiative center, and pioneered nitrogen-doping surface treatments that give niobium superconducting RF (SRF) cavities record-high quality factors. Beyond their traditional use in particle accelerators, these ultra-high-Q cavities are now deployed as extremely sensitive electromagnetic detectors: the Dark SRF experiment set new sensitivity limits on dark-photon light-shining-through-wall searches, and SRF cavities (e.g. the MAGO design) are being explored as high-frequency gravitational-wave and axion detectors, alongside long-lived multimode quantum memories for superconducting quantum computing.

Gratta's group works at the interface of atomic and particle physics, developing cold-atom interferometric gravimeters and gradiometers for tests of gravity alongside searches for neutrinoless double-beta decay using liquid-xenon TPCs (EXO-200/nEXO), spanning quantum sensing hardware and rare-event particle detection.

Gregor's Laboratory for the Physics of Life builds custom quantitative microscopes (single-objective oblique-plane light-sheet, multicolor live-imaging, single-molecule transcription imaging) to make precision, physics-style measurements of gene expression, morphogen gradients, and chromatin dynamics in living Drosophila embryos and mammalian gastruloids. He is actively recruiting PhD students and postdocs with expertise in super-resolution imaging, nonlinear/ultrafast optics, and instrumentation development.

Studies active galactic nuclei and supermassive black holes using reverberation-mapping and time-domain spectroscopy (e.g., SDSS).

Simon Groeblacher's lab probes quantum physics at meso- and macroscopic scales using mechanical motion, rare-earth ion emitters, and superconducting qubits. Key research directions: (1) quantum optomechanics with photonic crystal nano-beam resonators deep in the resolved-sideband regime; (2) silicon defect emitters (rare-earth doped silicon) for quantum network nodes; (3) quantum acoustics experiments coupling mechanical resonators to superconducting qubits. The lab fabricates all devices in-house at Kavli Nanolab and has received NWO Summit Grant for 'Quantum Limits' and QDNL/NWO grant for quantum network nodes.

Grucker works on optically-pumped, spin-exchange hyperpolarized helium-3 for quantum-fluid physics and biomedical MRI contrast, part of LKB's polarized-helium team that historically bridges fundamental AMO physics with clinical lung-imaging applications.