Vortex lattices in Bose-Einstein condensates with dipolar interactions beyond the weak-interaction limit

Journal Article · Thu Feb 15 04:00:00 EST 2007 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.75.023623· OSTI ID:20982174

Komineas, S ^[1]; Cooper, N R ^[2]

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1. Theory of Condensed Matter Group, Cavendish Laboratory, J.J. Thomson Avenue, Cambridge CB3 0HE, (United Kingdom)
2. Theory of Condensed Matter Group, Cavendish Laboratory, J.J. Thomson Avenue, Cambridge CB3 0HE (United Kingdom)

We study the ground states of rotating atomic Bose-Einstein condensates with dipolar interactions. We present the results of numerical studies on a periodic geometry which show vortex lattice ground states of various symmetries: triangular and square vortex lattices, stripe crystal, and bubble crystal. We present the phase diagram (for systems with a large number of vortices) as a function of the ratio of dipolar to contact interactions and of the chemical potential. We discuss the experimental requirements for observing transitions between vortex lattice ground states via dipolar interactions. We finally investigate the stability of mean-field supersolid phases of a quasi-two-dimensional nonrotating Bose gas with dipolar interactions.

• OSTI ID: 20982174
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 75; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BOSE-EINSTEIN CONDENSATION
BOSE-EINSTEIN GAS
BUBBLES
CRYSTAL LATTICES
GROUND STATES
MEAN-FIELD THEORY
NUMERICAL ANALYSIS
PERIODICITY
PHASE DIAGRAMS
POTENTIALS
STABILITY
SYMMETRY
TWO-DIMENSIONAL CALCULATIONS
VORTICES