Simple Mean-Field Theory for a Zero-Temperature Fermi Gas at a Feshbach Resonance
arXiv:cond-mat/0506183 · doi:10.1103/PhysRevLett.95.110408
Abstract
We present a simple two-channel mean field theory for a zero-temperature two-component Fermi gas in the neighborhood of a Feshbach resonance. Our results agree with recent experiments on the bare-molecule fraction as a function of magnetic field [Partridge et al., cond-mat/0505353]. Even in this strongly-coupled gas of Li-6, the experimental results depend on the structure of the molecules formed in the Feshbach resonance and, therefore, are not universal.
4 pages, 1 figure, 27+ references; submitted to PRL
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Cited by in corpus (12)
- Universal Properties of the Ultra-Cold Fermi Gas
- The potential energy of a K Fermi gas in the BCS-BEC crossover
- Cross-Molecular Coupling in Combined Photoassociation and Feshbach Resonances
- Population of closed-channel molecules in trapped Fermi gases with broad Feshbach resonances
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- Bogoliubov theory of Feshbach molecules in the BEC-BCS crossover
- Bound states of two bosons in an optical lattice near an association resonance
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- A pseudo-potential analog for zero-range photoassociation and Feshbach resonance
- Post-adiabatic Hamiltonian for low-energy excitations in a slowly time-dependent BCS-BEC crossover
- Mean-field stationary state of a Bose gas at a Feshbach resonance