Quantum Control Group

Our research explores new ways of using laser light to control atoms, molecules and particles. By tailoring laser light fields in space and time, the momentum of the photon can be used to control the position (trapping), velocity (cooling), orientation, and quantum state of the target species.

Our projects are both experimental and theoretical, and range from atom interferometry and quantum computation, to optical tweezers, optically-induced self-organisation and cavity-mediated cooling. We also explore underpinning technologies and techniques, from laser modulation, stabilisation and the design and analysis of resonant enhancement cavities, to miniature pumps, atom sources and optical components for integrated atom chips.  

Our group has invented a number of schemes for the cooling and trapping of atomic and other species (time-of-arrival trapping, the metastable optical pumping trap, cavity-enhanced dipole traps, mirror-mediated cooling) and has pioneered the application of composite pulse techniques and adiabatic passage to improve the fidelity of atom interferometer operations.

We have proposed a novel form of quantum computer based upon the momentum states of free atoms and are currently developing atom interferometric velocimetry as a technique for inertial control and rotation measurement. 

Part of Southampton's Quantum, Light and Matter Group, we work closely with colleagues in the University’s Optoelectronics Research Centre and Spin Dynamics group, and have strong collaborations with researchers in Birmingham, Bordeaux, Imperial College and St Andrews.