Crossover Temperature of Bose-Einstein Condensation in an Atomic Fermi Gas
- 30 March 2004
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 92 (13), 130401
- https://doi.org/10.1103/physrevlett.92.130401
Abstract
We show that in an atomic Fermi gas near a Feshbach resonance the crossover between a Bose-Einstein condensate of diatomic molecules and a Bose-Einstein condensate of Cooper pairs occurs at positive detuning, i.e., when the molecular energy level lies in the two-atom continuum. We determine the crossover temperature as a function of the applied magnetic field and find excellent agreement with the experiment of C. A. Regal et al. [ Phys. Rev. Lett. 92, 040403 (2004)] who has recently observed this crossover temperature.Keywords
This publication has 23 references indexed in Scilit:
- Pure Gas of Optically Trapped Molecules Created from Fermionic AtomsPhysical Review Letters, 2003
- Production of Long-Lived UltracoldMolecules from a Fermi GasPhysical Review Letters, 2003
- Conversion of an Atomic Fermi Gas to a Long-Lived Molecular Bose GasPhysical Review Letters, 2003
- Superfluid transition temperature in a trapped gas of Fermi atoms with a Feshbach resonancePhysical Review A, 2003
- Three-body problem in Fermi gases with short-range interparticle interactionPhysical Review A, 2003
- BCS-BEC Crossover in a Gas of Fermi Atoms with a Feshbach ResonancePhysical Review Letters, 2002
- Prospect of creating a composite Fermi–Bose superfluidPhysics Letters A, 2001
- Superfluidity of Spin-PolarizedLiPhysical Review Letters, 1996
- Threshold and resonance phenomena in ultracold ground-state collisionsPhysical Review A, 1993
- Stability of Spin-Aligned Hydrogen at Low Temperatures and High Magnetic Fields: New Field-Dependent Scattering Resonances and PredissociationsPhysical Review Letters, 1976