Josephson effects in condensates of excitons and exciton polaritons

Journal Article · Tue Jul 15 04:00:00 EDT 2008 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.78.041302· OSTI ID:21143605

Shelykh, I A; Solnyshkov, D D; Pavlovic, G; Malpuech, G ^[1]

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1. Physics Department, University of Iceland, Dunhaga-3, Reykjavik IS-107 (Iceland) and St. Petersburg State Polytechnical University, Polytechnicheskaya 29, St. Petersburg 195251 (Russian Federation)

We analyze theoretically the phenomena related to the Josephson effect for exciton and polariton condensates, taking into account their specific spin degrees of freedom. We distinguish between two types of Josephson effects: the extrinsic effect, related to the coherent tunneling of particles with the same spin between two spatially separated potential traps, and the intrinsic effect, related to the 'tunneling' between different spinor components of the condensate within the same trap. We show that the Josephson effect in the nonlinear regime can lead to nontrivial polarization dynamics and produce spontaneous separation of the condensates with opposite polarization in real space.

• OSTI ID: 21143605
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 4 Vol. 78; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BOSE-EINSTEIN CONDENSATION
CONDENSATES
DEGREES OF FREEDOM
EXCITONS
JOSEPHSON EFFECT
NONLINEAR PROBLEMS
PARTICLES
POLARIZATION
POLARONS
POTENTIALS
SPIN
SUPERCONDUCTIVITY
TRAPS
TUNNEL EFFECT