Structural Phase Transitions of Vortex Matter in an Optical Lattice

Journal Article · Fri May 20 00:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.94.190401· OSTI ID:20696269

Pu, H; Yi, S ^[1]; Baksmaty, L O; Bigelow, N P ^[2]

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1. Department of Physics and Astronomy, and Rice Quantum Institute, Rice University, Houston, Texas 77251-1892 (United States)
2. Department of Physics and Astronomy, and Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627 (United States)

We consider the vortex structure of a rapidly rotating trapped atomic Bose-Einstein condensate in the presence of a corotating periodic optical lattice potential. We observe a rich variety of structural phases which reflect the interplay of the vortex-vortex and vortex-lattice interactions. The lattice structure is very sensitive to the ratio of vortices to pinning sites and we observe structural phase transitions and domain formation as this ratio is varied.

• OSTI ID: 20696269
• Journal Information: Physical Review Letters, Vol. 94, Issue 19; Other Information: DOI: 10.1103/PhysRevLett.94.190401; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BOSE-EINSTEIN CONDENSATION
PERIODICITY
PHASE TRANSFORMATIONS
POTENTIALS
TRAPPING
VORTICES