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arXiv · 1612.01185

Spontaneous polariton currents in periodic lateral chains

A. V. Nalitov·T. C. H. Liew·A. V. Kavokin·B. L. Altshuler·Y. G. Rubo
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Abstract

We predict spontaneous generation of superfluid polariton currents in planar microcavities with lateral periodic modulation of both potential and decay rate. A spontaneous breaking of spatial inversion symmetry of a polariton condensate emerges at a critical pumping, and the current direction is stochastically chosen. We analyse the stability of the current with respect to the fluctuations of the condensate. A peculiar spatial current domain structure emerges, where the current direction is switched at the domain walls, and the characteristic domain size and lifetime scale with the pumping power.

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A. V. Nalitov, T. C. H. Liew, A. V. Kavokin, B. L. Altshuler, Y. G. Rubo. 2017-07-11. Spontaneous polariton currents in periodic lateral chains. https://doi.org/10.1103/physrevlett.119.067406

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