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Bragg Spectroscopy of a Strongly Interacting 85Rb Bose-Einstein Condensate Public Deposited

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https://scholar.colorado.edu/concern/articles/jm214p77k
Abstract
  • We report on measurements of the excitation spectrum of a strongly interacting Bose-Einstein condensate. A magnetic-field Feshbach resonance is used to tune atom-atom interactions in the condensate and to reach a regime where quantum depletion and beyond mean-field corrections to the condensate chemical potential are significant. We use two-photon Bragg spectroscopy to probe the condensate excitation spectrum; our results demonstrate the onset of beyond mean-field effects in a gaseous Bose-Einstein condensate.
Creator
Date Issued
  • 2008-09-22
Academic Affiliation
Journal Title
Journal Issue/Number
  • 13
Journal Volume
  • 101
File Extent
  • 135301-1-135301-4
Last Modified
  • 2019-12-05
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DOI
  • 10.1103/PhysRevLett.101.135301
ISSN
  • 0031-9007
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