Synchronized and Desynchronized Phases of Exciton-Polariton Condensates in the Presence of Disorder
arXiv:0712.2121 · doi:10.1103/PhysRevLett.100.170401
Abstract
Condensation of exciton-polaritons in semiconductor microcavities takes place despite in plane disorder. Below the critical density the inhomogeneity of the potential seen by the polaritons strongly limits the spatial extension of the ground state. Above the critical density, in presence of weak disorder, this limitation is spontaneously overcome by the non linear interaction, resulting in an extended synchronized phase. This mechanism is clearly evidenced by spatial and spectral studies, coupled to interferometric measurements. In case of strong disorder, several non phase-locked (independent) condensates can be evidenced. The transition from synchronized phase to desynchronized phase is addressed considering multiple realizations of the disorder.
arXiv comment11 pages, 4 figures,corrected typos, added figures
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