Phys. Rev. Lett. 88, 110401 (2002) [4 pages]Diffraction of a Superfluid Fermi Gas by an Atomic GratingReceived 5 October 2001; published 4 March 2002 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. © 2002 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.88.110401
DOI:
10.1103/PhysRevLett.88.110401
PACS:
03.75.Fi, 05.30.Fk, 42.50.Vk
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