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Diffraction of a superfluid fermi gas by an atomic grating.

Authors
Type
Published Article
Journal
Physical review letters
Publication Date
Volume
88
Issue
11
Pages
110401–110401
Identifiers
PMID: 11909390
Source
Medline
License
Unknown

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 is a potential candidate to detect the atomic superfluid state in a quantum degenerate Fermi gas.

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