Thermodynamics and linear response of a Bose-Einstein condensate of microcavity polaritons

In this work we derive a theory of polariton condensation based on the theory of interacting Bose particles. In particular, we describe self-consistently the linear exciton-photon coupling and the exciton-nonlinearities, by generalizing the Hartree-Fock-Popov description of BEC to the case of two coupled Bose fields at thermal equilibrium. In this way, we compute the density-dependent one-particle spectrum, the energy occupations and the phase diagram. The results quantitatively agree with the existing experimental findings. We then present the equations for the linear response of a polariton condensate and we predict the spectral response of the system to external optical or mechanical perturbations. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Published in:
Physica Status Solidi C - Current Topics In Solid State Physics, Vol 5, No 7, 5, 2420-2428
Presented at:
10 International Conference on Optics of Excitons in Confined Systems, Messina, ITALY, SEP 10-13, 2007
Year:
2008
Publisher:
V C H PUBLISHERS, SUITE 909, 220 E 23RD ST, NEW YORK, NY 10010 USA
Laboratories:




 Record created 2009-09-22, last modified 2018-09-13


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