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Diffraction of a superfluid Fermi gas by an atomic grating

Authors
  • Search, C. P.
  • Pu, H.
  • Zhang, W.
  • Meystre, P.
Type
Preprint
Publication Date
Oct 08, 2001
Submission Date
Oct 08, 2001
Identifiers
DOI: 10.1103/PhysRevLett.88.110401
arXiv ID: cond-mat/0110163
Source
arXiv
License
Unknown
External links

Abstract

An atomic grating generated by a pulsed standing wave laser field is proposed to manipulate the superfluid state in a quantum degenerate gas of fermionic atoms. We show that in the presence of atomic Cooper pairs, the density oscillations of the gas caused by the atomic grating exhibit a much longer coherence time than that in the normal Fermi gas. Our result indicates that the technique of a pulsed atomic grating can be a potential candidate to detect the atomic superfluid state in a quantum degenerate Fermi gas.

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