Jonathan Keeling is a Lecturer in Theoretical Condensed Matter Physics in the Scottish Universities Physics Alliance at the University of St Andrews, and an EPSRC Career Acceleration Fellow. Previously he was a research fellow at Pembroke College, Cambridge, and a Lindemann Fellow at the Massachusetts Institute of Technology. He did his undergraduate and graduate degrees at the University of Cambridge. He has worked mainly on exciton-polariton condensation, and more recently on problems of many-body quantum optics in coupled light-matter systems.
Cold atoms in optical cavities can undergo a transition to a liquid-crystalline state in which the positions of the atoms are determined by the photon field.