Vortex Lattices in Rotating Atomic Bose Gases with Dipolar Interactions

Journal Article · Fri Nov 11 04:00:00 EST 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.95.200402· OSTI ID:20699559

Cooper, N R ^[1]; Rezayi, E H ^[2]; Simon, S H ^[3]

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1. TCM Group, Cavendish Laboratory, Madingley Road, Cambridge CB3 0HE (United Kingdom)
2. Department of Physics, California State University, Los Angeles, California 90032 (United States)
3. Lucent Technologies, Bell Laboratories, 600 Mountain View Avenue, Murray Hill, New Jersey 07974 (United States)

We show that dipolar interactions have dramatic effects on the ground states of rotating atomic Bose gases in the weak-interaction limit. With increasing dipolar interaction (relative to the net contact interaction), the mean field, or high filling factor, ground state undergoes a series of transitions between vortex lattices of different symmetries: triangular, square, 'stripe', and 'bubble' phases. We also study the effects of dipolar interactions on the quantum fluids at low filling factors. We show that the incompressible Laughlin state at filling factor {nu}=1/2 is replaced by compressible stripe and bubble phases.

• OSTI ID: 20699559
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 95; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BOSE-EINSTEIN GAS
GROUND STATES
MEAN-FIELD THEORY
QUANTUM FLUIDS
SYMMETRY
VORTICES
WEAK INTERACTIONS