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Momentum Resolved Radio Frequency Spectroscopy in Trapped Fermi Gases

Journal Article · · Physical Review Letters
 [1];  [2]
  1. Zhejiang Institute of Modern Physics and Department of Physics, Zhejiang University, Hangzhou, Zhejiang 310027 (China)
  2. James Franck Institute and Department of Physics, University of Chicago, Chicago, Illinois 60637 (United States)
We address recent momentum-resolved radio frequency (rf) spectroscopy experiments, showing how they yield more stringent tests than other comparisons with theory, associated with the ultracold Fermi gases. We demonstrate that, by providing a clear dispersion signature of pairing, they remove the ambiguity plaguing the interpretation of previous rf experiments. Our calculated spectral intensities are in semiquantitative agreement with the data. Even in the presence of a trap, the spectra are predicted to exhibit two BCS-like branches.
OSTI ID:
21316699
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 19 Vol. 102; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English