401 citations · 7.2k across the 96 of their papers we have counts for
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Feynman Path Integrals Over Entangled States
A. G. Green, C. A. Hooley, J. Keeling +1
The saddle points of a conventional Feynman path integral are not entangled, since they comprise a sequence of classical field configurations. We combine insights from field theory…
Optical recombination of biexcitons in semiconductors
M. Bauer, J. Keeling, M. M. Parish +2
We calculate the photoluminescence spectrum and lifetime of a biexciton in a semiconductor using Fermi's golden rule. Our biexciton wavefunction is obtained using a Quantum Monte C…
Quantum corrections to the semiclassical collective dynamics in the Tavis-Cummings model
Jonathan Keeling
The Tavis-Cummings model (the Dicke model treated in the rotating wave approximation) describing many two-level systems coupled to a single bosonic mode, has been long known to sho…
Collective coherence in planar semiconductor microcavities
J. Keeling, F. M. Marchetti, M. H. Szymanska +1
Semiconductor microcavities, in which strong coupling of excitons to confined photon modes leads to the formation of exciton-polariton modes, have increasingly become a focus for t…
BCS-BEC crossover in a system of microcavity polaritons
Jonathan Keeling, P. R. Eastham, M. H. Szymanska +1
We investigate the thermodynamics and signatures of a polariton condensate over a range of densities, using a model of microcavity polaritons with internal structure. We determine…
Models of coherent exciton condensation
P. B. Littlewood, P. R. Eastham, J. M. J. Keeling +3
That excitons in solids might condense into a phase-coherent ground state was proposed about 40 years ago, and has been attracting experimental and theoretical attention ever since…