Article

 

Rapidly Rotating Bose-Einstein Condensates in and near the Lowest Landau Level Öffentlichkeit Deposited

https://scholar.colorado.edu/concern/articles/ns064656v
Abstract
  • We create rapidly rotating Bose-Einstein condensates in the lowest Landau level by spinning up the condensates to rotation rates Ω > 99% of the centrifugal limit for a harmonically trapped gas, while reducing the number of atoms. As a consequence, the chemical potential drops below the cyclotron energy 2ℏΩ. While in this mean-field quantum-Hall regime we still observe an ordered vortex lattice, its elastic shear strength is strongly reduced, as evidenced by the observed very low frequency of Tkachenko modes. Furthermore, the gas approaches the quasi-two-dimensional limit. The associated crossover from interacting- to ideal-gas behavior along the rotation axis results in a shift of the axial breathing mode frequency.
Creator
Date Issued
  • 2004-01-30
Academic Affiliation
Journal Title
Journal Issue/Number
  • 4
Journal Volume
  • 92
File Extent
  • 040404-1-040404-4
Zuletzt geändert
  • 2019-12-05
Resource Type
Urheberrechts-Erklärung
DOI
  • 10.1103/PhysRevLett.92.040404
ISSN
  • 0031-9007
Language

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