BCS-BEC crossover in a gas of Fermi atoms with a Feshbach resonance

Yoji Ohashi, A. Griffin

Research output: Contribution to journalArticle

429 Citations (Scopus)


The BCS-Bose-Einstein condensate (BEC) crossover in a degenerate Fermi gas of two hyperfine states was discussed. It was found that the superfluid phase transition temperature can be conveniently determined by the Thouless criterion. It was shown that the character of the superfluid phase transition continuously changes from the BCS type to the BEC type by including fluctuation contributions to the free energy.

Original languageEnglish
Pages (from-to)1304021-1304024
Number of pages4
JournalPhysical Review Letters
Issue number13
Publication statusPublished - 2002 Sep 23
Externally publishedYes


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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