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Precision Measurements of Collective Oscillations in the BEC-BCS Crossover

Open access
Altmeyer, A., Riedl, S., Kohstall, C., Wright, M. J., Geursen, R., Bartenstein, M., Chin, C., Denschlag, J. Hecker, Grimm, R.·2007·Physical Review Letters

Abstract

We report on precision measurements of the frequency of the radial compression mode in a strongly interacting, optically trapped Fermi gas of (6)Li atoms. Our results allow for a test of theoretical predictions for the equation of state in the BEC-BCS crossover. We confirm recent quantum Monte Carlo results and rule out simple mean-field BCS theory. Our results show the long-sought beyond-mean-field effects in the strongly interacting Bose-Einstein condensation (BEC) regime.

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Metadata

Authors
Altmeyer, A., Riedl, S., Kohstall, C., Wright, M. J., Geursen, R., Bartenstein, M., Chin, C., Denschlag, J. H., & Grimm, R.
Venue
Physical Review Letters
Published
2007-01-22
Volume
98
Issue
4
Pages
040401-040401
ISSN
  • 0031-9007 (ISSN-L)
  • 1079-7114
OpenAlex
W1973039074
Cited by
242
References
0
FWCI
16.30
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Precision Measurements of Collective Oscillations in the BEC-BCS Crossover. https://app.cochat.ai/papers/10.1103/physrevlett.98.040401
The paper
Altmeyer, A., Riedl, S., Kohstall, C., Wright, M. J., Geursen, R., Bartenstein, M., Chin, C., Denschlag, J. H., & Grimm, R. (2007). Precision Measurements of Collective Oscillations in the BEC-BCS Crossover. Physical Review Letters. https://doi.org/10.1103/physrevlett.98.040401

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