Cheuk laser-cools and traps individual laser-coolable molecules (e.g. CaF) in optical tweezer arrays, achieving high-fidelity non-destructive imaging, Raman sideband cooling, and on-demand entanglement of molecular qubits, with explicit applications to quantum simulation, quantum information processing, and quantum-enhanced sensing/precision measurement. The rich internal structure of molecules gives access to new sensing modalities (e.g. searches for new physics) that complement atom-based quantum sensors.
Experimental AMO physicist using ultracold atoms and optical lattices for quantum simulation and sensing. Directions: (1) Efimov and few-body physics in ultracold Cs and Cs-Li mixtures; (2) quantum phase transitions and strongly correlated quantum matter in optical lattices; (3) optical tweezer arrays for single-atom and single-molecule quantum simulation. Develops novel imaging techniques for in-situ atomic density measurements.
Experimental AMO physicist focused on precision measurement for fundamental physics. Primary directions: (1) ACME experiment measuring electron electric dipole moment to unprecedented precision using ThO molecular beam — tests for new CP-violating physics beyond the Standard Model; (2) ultracold polar molecule quantum simulation and quantum information in optical tweezers. Atomic coherence techniques underpin SERF/OPM magnetometry. Joined UChicago from Yale 2022.
Doyle's group laser-cools and traps polyatomic and diatomic molecules (including CaF and YbOH) using cryogenic buffer-gas sources, applying them to precision tests of fundamental physics such as the electron electric dipole moment (ACME-style eEDM measurement) and to molecule-based quantum information. This precision-measurement approach to fundamental-symmetry tests is a borderline but included case under the quantum-sensing umbrella, given its shared cold-molecule-platform lineage with atomic/vapor sensing and inertial-sensing work.
Ni's group creates and controls individual molecules at the lowest achievable temperatures, using optical tweezers to study state-resolved ultracold chemical reactions and quantum effects in molecular collisions. Included here as a borderline precision-measurement/quantum-sensing platform (ultracold polar molecules), analogous to the eEDM/ultracold-molecule work elsewhere in the department, though her core emphasis is chemical reaction dynamics rather than device sensing.