Spontaneous Polariton Currents in Periodic Lateral Chains

We predict spontaneous generation of superfluid polariton currents in planar microcavities with lateral periodic modulation of both the 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...

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Bibliographic Details
Published in:Physical review letters 2017-08, Vol.119 (6), p.067406-067406, Article 067406
Main Authors: Nalitov, A V, Liew, T C H, Kavokin, A V, Altshuler, B L, Rubo, Y G
Format: Article
Language:English
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Summary:We predict spontaneous generation of superfluid polariton currents in planar microcavities with lateral periodic modulation of both the 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 analyze 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.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.119.067406