Keeling, J;
Eastham, PR;
Szymanska, MH;
Littlewood, PB;
(2004)
Polariton condensation with localized excitons and propagating photons.
Physical Review Letters
, 93
(22)
, Article 226403. 10.1103/PhysRevLett.93.226403.
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Abstract
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 Tc∝ρ, as expected for a gas of structureless polaritons. However, as Tc 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.
| Type: | Article |
|---|---|
| Title: | Polariton condensation with localized excitons and propagating photons |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.93.226403 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.93.226403 |
| Language: | English |
| Additional information: | © 2004 The American Physical Society |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1398701 |
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