Prospect of creating a composite fermi/bose superfluid

Details Prospect of creating a composite fermi/bose superfluid Prospect of creating a composite fermi/bose superfluid

2001-03-15

arxiv.org/abs/cond-mat/0103327v1

Physics

Condensed Matter

Superconductivity

Rejected by PRL

Scientific paper

10.1016/S0375-9601(01)00346-2

We show that composite fermi/bose superfluids can be created in cold-atom traps by employing a Feshbach resonance or coherent photoassociation. The bosonic molecular condensate created in this way implies a new fermion pairing mechanism associated with the exchange of fermion pairs between the molecular condensate and an atomic fermion superfluid. We predict macroscopically coherent, Josephson-like oscillations of the atomic and molecular populations in response to a sudden change of the molecular energy, and suggest that these oscillations will provide an experimental signature of the pairing.

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