Order parameter dynamics of a Bose-Einstein condensate of exciton-polaritons in semiconductor microcavities
Mesoscale and Nanoscale Physics
2009-07-09 v1 Statistical Mechanics
Abstract
It is shown theoretically that Bose condensation of spin-degenerated exciton-polaritons results in spontaneous buildup of the linear polarization in emission spectra of semiconductor microcavities. The linear polarization degree is a good order parameter for the polariton Bose condensation. If spin-degeneracy is lifted, an elliptically polarized light is emitted by the polariton condensate. The main axis of the ellipse rotates in time due to self-induced Larmor precession of the polariton condensate pseudospin. The polarization decay time is governed by the dephasing induced by the polariton-polariton interaction and strongly depends on the statistics of the condensed state.
Keywords
Cite
@article{arxiv.cond-mat/0503402,
title = {Order parameter dynamics of a Bose-Einstein condensate of exciton-polaritons in semiconductor microcavities},
author = {I. Shelykh and F. P. Laussy and A. V. Kavokin and G. Malpuech},
journal= {arXiv preprint arXiv:cond-mat/0503402},
year = {2009}
}
Comments
11 pages, 1 figure