Diffraction of a superfluid fermi gas by an atomic grating |
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Authors: | Search C P Pu H Zhang W Meystre P |
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Affiliation: | Optical Sciences Center, The University of Arizona, Tucson, Arizona 85721, USA. |
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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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