Dr S N Yurchenko

Department of Physics and Astronomy, University College London, London WC1E 6BT, UK

Professor M Szymanska

Department of Physics and Astronomy, University College London, London WC1E 6BT, UK Research Group: Quantum Collective Dynamics in Light-Matter Systems

Professor N S Scott

School of Electronics, Electrical Engineering and Computer Science The Queen’s University of Belfast, Belfast BT7 1NN, UK

Dr G R M Robb

Department of Physics, University of Strathclyde, John Anderson Building, 107 Rottenrow East, Glasgow, G4 0NG, UK