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Nonequilibrium transitions, chaos, and chimera states in exciton-polariton systems

 a, b
a Institute of Solid-State Physics, Russian Academy of Sciences, Chernogolovka, Moscow Region, Russian Federation
b National Research University Higher School of Economics, ul. Myasnitskaya 20, Moscow, 101000, Russian Federation

The review is devoted to exciton polaritons, short-lived Bose particles which are optically excited in semiconductors and form macroscopically coherent states under the conditions of coherent and resonant external driving. Interaction of polaritons results in multistability, spontaneous breaking of spin and spatial symmetries, self-pulsations, and pattern formation. In contrast to conservative systems, where broken-symmetry states are usually steady and characterized by a small number of order parameters, the polariton system also features paradoxical "chimera states" in which order and chaos coexist and in some way balance each other.

Text is available here.

Keywords: polariton, Bose-Einstein condensate, spinor condensate, multistability, spontaneous symmetry breaking, self-pulsations, dynamical chaos, chimera states, self-organization
PACS: 03.75.Kk, 05.45.Xt, 05.65.+b, 42.65.Sf, 47.20.Ky, 71.36.+c (all)
DOI: 10.3367/UFNe.2019.04.038549
Citation: Gavrilov S S "Nonequilibrium transitions, chaos, and chimera states in exciton-polariton systems" Phys. Usp., accepted

Received: 6th, September 2018, revised: 3rd, April 2019, 10th, April 2019

Оригинал: Гаврилов С С «Неравновесные переходы, хаос и химерные состояния в системах экситонных поляритонов» УФН, принята к публикации; DOI: 10.3367/UFNr.2019.04.038549

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