Structural change of vortex patterns in anisotropic Bose-Einstein condensates

Journal Article · Sun May 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.053612· OSTI ID:21546825

Lo Gullo, N; Busch, Th ^[1]; Paternostro, M ^[2]

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1. Department of Physics, University College Cork, Cork (Ireland)
2. School of Mathematics and Physics, Queen's University, Belfast BT7 1NN (United Kingdom)

We study the changes in the spatial distribution of vortices in a rotating Bose-Einstein condensate due to an increasing eccentricity of the trapping potential. By breaking the rotational symmetry, the vortex system undergoes a rich variety of structural changes, including the formation of zigzag and linear configurations. These spatial rearrangements are well signaled by the change in the behavior of the vortex-pattern eigenmodes against the eccentricity parameter. This behavior allows to actively control the distribution of vorticity in many-body systems and opens the possibility of studying interactions between quantum vortices over a large range of parameters.

• OSTI ID: 21546825
• Journal Information: Physical Review. A, Vol. 83, Issue 5; Other Information: DOI: 10.1103/PhysRevA.83.053612; (c) 2011 American Institute of Physics; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
74 ATOMIC AND MOLECULAR PHYSICS
ANISOTROPY
BOSE-EINSTEIN CONDENSATION
CONFIGURATION
INTERACTIONS
MANY-BODY PROBLEM
POTENTIALS
SPATIAL DISTRIBUTION
SYMMETRY
TRAPPING
VORTICES
DISTRIBUTION