Abstract
We consider the superfluid phase transition that arises when a Feshbach resonance pairing occurs in a dilute Fermi gas. We apply our theory to consider a specific resonance in potassium ( ), and find that for achievable experimental conditions, the transition to a superfluid phase is possible at the high critical temperature of about . Observation of superfluidity in this regime would provide the opportunity to experimentally study the crossover from the superfluid phase of weakly coupled fermions to the Bose-Einstein condensation of strongly bound composite bosons.
- Received 22 March 2001
DOI:https://doi.org/10.1103/PhysRevLett.87.120406
©2001 American Physical Society