Alex Ferrier


Email: a.ferrier[at]
Tel: +44 (0) 20 7679 3746
Room 231 Wilkins Building
Department of Physics and Astronomy
University College London
Gower Street, London WC1E 6BT, UK.

My research interests

My research interests include order and phase transitions in non-equilibrium many-body quantum systems, and phase space methods for simulating driven-dissipative many-body quantum systems, particularly the truncated Wigner representation, which works well for these systems due to the dissipation justifying the truncation of higher order quantum fluctuations. The particular physical system that I study with these methods is the optical parametric oscillator regime of polaritons in semiconductor microcavities, where multiple momentum modes become macroscopically occupied via parametric scattering of polaritons from the mode that is coherently pumped. My current research involves looking at the spacial correlations in this system to find evidence of the KPZ phase.

Recent Publications

Properties of the signal mode in the polariton parametric oscillator regime
K. Dunnet, A. Ferrier, A. Zamora, G. Dagvadorj, and M. H. Szymańska
Phys. Rev. B 98, 165307 (2018)