Author Affiliations

R. J. Collins,^1,* P. J. Clarke,¹ V. Dunjko,^1,2 R. J. Donaldson,¹ J. Jeffers,³ E. Andersson,¹ and G. S. Buller¹

¹SUPA, Institute of Photonics and Quantum Sciences, School of Engineering and Physical Sciences, David Brewster Building, Gait2, Heriot-Watt University, Edinburgh, EH14 4AS, UK

²Now at: School of Informatics, Informatics Forum, The University of Edinburgh, 10 Crichton Street, Edinburgh, EH8 9AB, UK

³SUPA, Department of Physics, John Anderson Building, University of Strathclyde, Glasgow, G4 0NG, UK

^*Corresponding author: R.J.Collins@hw.ac.uk