Synchronized and Desynchronized Phases of Exciton-Polariton Condensates in the Presence of Disorder

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.

11 pages, 4 figures,corrected typos, added figures

References in corpus (6)

• Excitations in a non-equilibrium Bose-Einstein condensate of exciton-polaritons
• Non-equilibrium quantum condensation in an incoherently pumped dissipative system
• Synchronized and desynchronized phases of coupled non-equilibrium exciton-polariton condensates
• Bose glass and superfuid phases of cavity polaritons
• Quantum degeneracy of microcavity polaritons
• Phase locking in quantum and classical oscillators: polariton condensates, lasers, and arrays of Josephson junctions

Cited by in corpus (4)

• Quantised Vortices in an Exciton-Polariton Fluid
• Mode-locking and mode-competition in a non-equilibrium solid-state condensate
• Probing the excitation spectrum of nonresonantly pumped polariton condensates
• Phase diagram for condensation of microcavity polaritons: from theory to practice