Diffraction of a superfluid fermi gas by an atomic grating

C. P. Search, H. Pu, W. Zhang, P. Meystre

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


The possibility of using atom optics techniques to directly study the coherence present in a gas of fermionic atoms that went through Bardeen-Cooper-Schrieffer (BCS) transition was studied. An atomic grating generated by a pulsed standing-wave laser field was proposed to manipulate the superfluid state in a quantum degenerate gas of fermionic atoms. It was shown that density oscillations of the gas caused by the atomic grating exhibited a much longer coherence time than in the normal Fermi gas in the presence of atomic Cooper pairs.

Original languageEnglish (US)
Article number110401
Pages (from-to)1104011-1104014
Number of pages4
JournalPhysical review letters
Issue number11
StatePublished - Mar 18 2002

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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