Imperial College London


Faculty of Natural SciencesDepartment of Mathematics

Reader in Condensed Matter Theory



+44 (0)20 7594 8536r.barnett Website




6M49Huxley BuildingSouth Kensington Campus





Systems of many particles evolving through the well-established theories of electromagnetism and quantum mechanics often collectively organize themselves in elegant ways. As a condensed matter theorist, Dr Barnett focuses on predicting and understanding such behaviour from a microscopic basis. He is particularly interested in systems where quantum mechanics and interactions play a crucial role.  His recent research has focused on elucidating collective effects in ultracold atomic gases.

For details about Dr Barnett and his research see:


Barnett R, Jager J, 2021, A stochastic fields approach to the quench dynamics of a one dimensional Bose polaron, Physical Review Research, Vol:3, ISSN:2643-1564, Pages:1-10

Sykes J, Barnett R, 2021, Local Topological Markers in Odd Dimensions, Phys. Rev. B, Vol:103

Jager J, Barnett R, Will M, et al., 2020, Strong-coupling Bose polarons in one dimension: Condensate deformation and modified Bogoliubov phonons, Physical Review Research, Vol:2, ISSN:2643-1564, Pages:033142 – 1-033142 – 8

Mingarelli L, Barnett R, 2019, Exotic vortex lattices in binary repulsive superfluids, Physical Review Letters, Vol:122, ISSN:0031-9007

Wrubel JP, Schwettmann A, Fahey DP, et al., 2018, Spinor Bose-Einstein-condensate phase-sensitive amplifier for SU(1,1) interferometry, Physical Review A, Vol:98, ISSN:2469-9926