Spontaneous Polariton Currents in Periodic Lateral Chains
Por:
Nalitov, A. V., Liew, T. C. H., Kavokin, A. V., Altshuler, B. L., Rubo, Y. G.
Publicada:
11 ago 2017
Categoría:
Physics and astronomy (miscellaneous)
Resumen:
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.
Filiaciones:
Nalitov, A. V.:
Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
Liew, T. C. H.:
Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, Singapore 637371, Singapore
Kavokin, A. V.:
Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
CNR SPIN, Viale Politecn 1, I-00133 Rome, Italy
St Petersburg State Univ, Spin Opt Lab, St Petersburg 198504, Russia
Russian Quantum Ctr, 100 Novaya St, Skolkovo 143025, Moscow Region, Russia
Altshuler, B. L.:
Columbia Univ, Dept Phys, 538 W 120th St, New York, NY 10027 USA
Rubo, Y. G.:
Univ Nacl Autonoma Mexico, Inst Energias Renovables, Temixco, Morelos 62580, Mexico
Inst for Basic Sci Korea, Ctr Theoret Phys Complex Syst, Daejeon 34051, South Korea
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