Description

2012/12/11, Dr. Mikhail Glazov

Place:  Sala de Seminarios del Departamento de Física Teórica e Historia de la Ciencia
Time:  12h
Title:   Formation of polariton Bose-Einstein condensate in a semiconductor microcavity
 
 
Abstract
 
The dynamics of the first order spatial coherence for a polariton system in a high-Q microcavity was investigated on the basis of Young's double slit experiment at the conditions of polariton Bose-Einstein condensation. It was found that in the process of condensate formation, the coherence build-up time increases almost linearly with the distance indicating that the coherence expands with almost constant velocity of about 10^8 cm/s. The coherence is strongly affected by exciton reservoir and polariton decay kinetics. It is smaller than coherence in thermally equilibrium system during the growth of condensate density and well exceeds it at the end of condensate decay.