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Collective oscillations in spatially modulated exciton-polariton condensate arrays

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Abstract

We study collective dynamics of interacting centers of exciton-polariton condensation in presence of spatial inhomogeneity, as modeled by diatomic active oscillator lattices. The mode formalism is developed and employed to derive existence and stability criteria of plane wave solutions. It is demonstrated that k 0 = 0 wave number mode with the binary elementary cell on a diatomic lattice possesses superior existence and stability properties. Decreasing net on-site losses (balance of dissipation and pumping) or conservative nonlinearity favors multistability of modes, while increasing frequency mismatch between adjacent oscillators detriments it. On the other hand, spatial inhomogeneity may recover stability of modes at high nonlinearities. Entering the region where all single-mode solutions are unstable we discover subsequent transitions between localized quasiperiodic, chaotic and global chaotic dynamics in the mode space, as nonlinearity increases. Importantly, the last transition evokes the loss of synchronization. These effects may determine lasing dynamics of interacting exciton-polariton condensation centers.

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Authors and Affiliations

  1. Theory of Oscillations Department, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, 603950, Russia

    Andrey A. Tikhomirov & Oleg I. Kanakov

  2. Department of Physics, Columbia University, New York, NY, 10027, USA

    Boris L. Altshuler

  3. Department of Bioinformatics, Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, 603950, Russia

    Mikhail V. Ivanchenko

Authors
  1. Andrey A. Tikhomirov
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  2. Oleg I. Kanakov
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  3. Boris L. Altshuler
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  4. Mikhail V. Ivanchenko
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Corresponding author

Correspondence to Mikhail V. Ivanchenko.

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Tikhomirov, A., Kanakov, O., Altshuler, B. et al. Collective oscillations in spatially modulated exciton-polariton condensate arrays. Eur. Phys. J. B 88, 7 (2015). https://doi.org/10.1140/epjb/e2014-50838-0

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  • DOI: https://doi.org/10.1140/epjb/e2014-50838-0

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