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Nonequilibrium Effects of Anisotropic Compression Applied to Vortex Lattices in Bose-Einstein Condensates Public Deposited

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https://scholar.colorado.edu/concern/articles/dz010q722
Abstract
  • We have studied the dynamics of large vortex lattices in a dilute-gas Bose-Einstein condensate. While undisturbed lattices have a regular hexagonal structure, large-amplitude quadrupolar shape oscillations of the condensate are shown to induce a wealth of nonequilibrium lattice dynamics. When exciting an m=−2 mode, we observe shifting of lattice planes, changes of lattice structure, and sheetlike structures in which individual vortices appear to have merged. Excitation of an m=+2 mode dissolves the regular lattice, leading to randomly arranged but still strictly parallel vortex lines.
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Date Issued
  • 2002-09-02
Academic Affiliation
Journal Title
Journal Issue/Number
  • 10
Journal Volume
  • 89
File Extent
  • 100403-1-100403-4
Last Modified
  • 2019-12-05
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DOI
  • 10.1103/PhysRevLett.89.100403
ISSN
  • 0031-9007
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