A dilute atomic Fermi system with a large positive scattering length

Aurel Bulgac; Paulo F. Bedaque; Antonio C. Fonseca

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A dilute atomic Fermi system with a large positive scattering length

Aurel Bulgac·Paulo F. Bedaque·Antonio C. Fonseca

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Abstract

We show that a dilute atomic Fermi system at sufficiently low temperatures, can display fermionic superfluidity, even in the case of a repulsive atom-atom interaction, when the scattering length is positive. The attraction leading to the formation of Cooper pairs is provided by the exchange of Bogoliubov phonons if a fraction of the atoms form a BEC of weakly bound molecules.

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Aurel Bulgac, Paulo F. Bedaque, Antonio C. Fonseca. 2004-02-16. A dilute atomic Fermi system with a large positive scattering length. https://arxiv.org/abs/cond-mat/0306302

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