Nonlinear Dynamics of Exciton-Polariton Condensates in a One-Dimensional Lattice


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Abstract

We consider the problem of exciton-polariton-condensate formation in a semiconductor microcavity in the strong coupling regime. The condensate is confined in a one-dimensional periodic potential and coupled to an exciton reservoir that is formed by the external cw pumping. The condensate dynamics is studied in the center and in the edges of the Brillouin zone (BZ). Modeling the formation of the condensate from weak initial noise shows that besides steady states the macroscopic oscillations of polariton density can also occur. Within the framework of the mean field approach, we obtain important analytic relations for the condensate eigenstates using the developed simplified model for three coupled spatial harmonics. A numerical analysis verifies the correctness of the analytic results.

About the authors

Martin V. Charukhchyan

Department of Physics and Applied Mathematics, A. G. Stoletov and N. G. Stoletov Vladimir State University

Author for correspondence.
Email: martin.charukhchyan@gmail.com
Russian Federation, Vladimir, 600000

Igor Yu. Chestnov

Department of Physics and Applied Mathematics, A. G. Stoletov and N. G. Stoletov Vladimir State University

Email: martin.charukhchyan@gmail.com
Russian Federation, Vladimir, 600000

Alexander P. Alodjants

Department of Physics and Applied Mathematics, A. G. Stoletov and N. G. Stoletov Vladimir State University; National Research University of Information Technology, Mechanics and Optics (ITMO)

Email: martin.charukhchyan@gmail.com
Russian Federation, Vladimir, 600000; Saint Petersburg, 197101

Oleg A. Egorov

Institute of Condensed Matter Theory and Solid State Optics Abbe Center of Photonics, Friedrich-Schiller-Universität

Email: martin.charukhchyan@gmail.com
Germany, Jena, 07743

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