Trapped Two-Dimensional Condensates with Synthetic Spin-Orbit Coupling

Journal Article · Fri Dec 30 04:00:00 EST 2011 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.107.270401· OSTI ID:21612581

Sinha, Subhasis ^[1]; Nath, Rejish ^[2]; Santos, Luis ^[3]

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1. Indian Institute of Science Education and Research-Kolkata, Mohanpur, Nadia 741252 (India)
2. Max Planck Institute for the Physics of Complex Systems, Noethnitzer Strasse 38, D-01187 Dresden (Germany)
3. Institut fuer Theoretische Physik, Leibniz Universitaet, Hannover, Appelstrasse 2, D-30167, Hannover (Germany)

We study trapped 2D atomic Bose-Einstein condensates with spin-independent interactions in the presence of an isotropic spin-orbit coupling, showing that a rich physics results from the nontrivial interplay between spin-orbit coupling, confinement and interatomic interactions. For low interactions two types of half-vortex solutions with different winding occur, whereas strong-enough repulsive interactions result in a stripe-phase similar to that predicted for homogeneous condensates. Intermediate interaction regimes are characterized for large enough spin-orbit coupling by an hexagonally-symmetric phase with a triangular lattice of density minima similar to that observed in rapidly rotating condensates.

• OSTI ID: 21612581
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 27 Vol. 107; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANGULAR MOMENTUM
BOSE-EINSTEIN CONDENSATION
COUPLING
INTERMEDIATE COUPLING
L-S COUPLING
PARTICLE PROPERTIES
SPIN
TRAPPING
TWO-DIMENSIONAL CALCULATIONS