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.

Lim is an Advanced Research Fellow jointly responsible for the ultracold eEDM experiment at Imperial. He contributed to demonstrating sub-Doppler laser cooling of YbF to 100 μK (PRL 2018), the first demonstration of laser cooling of a heavy polar molecule to ultracold temperatures. He now leads development of the lattice eEDM experiment, developing techniques for loading laser-cooled YbF into a 3D optical lattice for precision eEDM measurements with coherence times far exceeding those of the beam experiment.

Sauer co-leads both YbF eEDM experiments at the Centre for Cold Matter together with Tarbutt and Lim. Key contributions: magnetometry for EDM measurement (design and characterisation of precision magnetic field systems for the ultracold eEDM experiment), precision spectroscopy of heavy polar molecules (YbF, lattice eEDM), and development of spin polarisation/analysis schemes. Co-PI on STFC grants for eEDM and magnetometry. Together the group aims to probe the eEDM at the 10^−30 e·cm level — several orders of magnitude improvement over existing measurements from ACME (Harvard/Yale).

Tarbutt co-leads the Imperial eEDM experiment using YbF molecules and runs an independent molecular array quantum computing/sensing programme. Two parallel eEDM experiments: (1) Ultracold YbF beam — 2D transverse laser cooling producing 200 μK, 2×10^5 molecules/shot, eEDM sensitivity of 1.8×10^−28 e·cm/day (near shot-noise limit); (2) YbF 3D optical lattice — aiming for 10^−30 e·cm/year, requires laser cooling to μK and loading into 3D optical lattice, using novel all-optical spin polarisation and analysis. Also leads UKRI project on testing fundamental physics using arrays of ultracold molecules (CaF in optical tweezers for two-qubit molecular gates). These experiments probe CP-violation and BSM physics at PeV energy scales through precision molecular spectroscopy.

Truppe is an Associate Professor at the Centre for Cold Matter, specialising in laser cooling of atoms and diatomic molecules using deep-UV lasers. His current focus is aluminium monofluoride (AlF) and magnesium fluoride (MgF): AlF can be produced in a bright cryogenic buffer-gas beam and rapidly optically cycled on the A¹Π↔X¹Σ⁺ transition, making it a candidate for high-density laser trapping; MgF is characterised for its A²Π↔X²Σ⁺ hyperfine structure, relevant to laser cooling. These molecules open routes to ultracold chemistry studies, precision spectroscopy, and quantum simulation. Truppe returned to Imperial as faculty after a period at the Fritz Haber Institute (ERC Starting Grant, 'CoMoFun', cold molecules for fundamental physics).