2004/07/31 by Jonathan Keeling, P. R. Eastham, M. H. Szymańska +2 · 1 citation
Engineering · Physics and Astronomy · #Plasmonic and Surface Plasmon Research #Strong Light-Matter Interactions #Thermal Radiation and Cooling Technologies #cond-mat.str-el
paper · pdf · doi:10.1103/physrevlett.93.226403
published as Phys. Rev. Lett. 93, 226403 (2004) · 5 pages, 4 figures, Corrected typos, replaced figure 3
arxiv created 2004/11/11 · openalex publication_date 2004/11/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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, rho, 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.