Kosterlitz - Thouless phase transition in microcavity polariton system
Yu. E. Lozovik, A. G. Semenov+, M. Willander*
Institute of Spectroscopy, 142190 Troitsk, Moscow reg. Russia
+P.N. Lebedev Physical Institute RAS, 117924 Moscow, Russia
*Goteborg University, Chalmers Technological Institute, Goteborg
PACS: 42.50.Ar, 71.35.Lk, 71.36.+c
Abstract
Kosterlitz - Thouless phase transition in the system of
exciton-polaritons in microcavity is studied. Transition
temperature to superfluid state was found as function of
exciton-photon detuning. Non quadratic dispersion law was taken
into account in the framework of self-consistent harmonic
approximation (SCHA).