Polariton condensation with localized excitons and propagating photons

Jonathan Mark James Keeling, P R Eastham, M H Szymanska, P B Littlewood

Research output: Contribution to journalArticlepeer-review

84 Citations (Scopus)


We estimate the condensation temperature for microcavity polaritons, allowing for their internal structure. We consider polaritons formed from localized excitons in a planar microcavity, using a generalized Dicke model. At low densities, we find a condensation temperature T(c)proportional torho, as expected for a gas of structureless polaritons. However, as T-c becomes of the order of the Rabi splitting, the structure of the polaritons becomes relevant, and the condensation temperature is that of a BCS-like mean-field theory. We also calculate the excitation spectrum, which is related to observable quantities such as the luminescence and absorption spectra.

Original languageEnglish
Pages (from-to)226403
Number of pages4
JournalPhysical Review Letters
Issue number22
Publication statusPublished - 26 Nov 2004




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