Abstract
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 language | English |
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Article number | 110401 |
Pages (from-to) | 1104011-1104014 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 88 |
Issue number | 11 |
State | Published - 18 Mar 2002 |