منابع مشابه
s-Wave interaction in a two-species Fermi-Fermi mixture at a narrow Feshbach resonance.
We investigate s-wave interactions in a two-species Fermi-Fermi mixture of 6Li and 40K. We develop for this case the method of cross-dimensional relaxation and find from a kinetic model, Monte Carlo simulations, and measurements that the individual relaxation rates differ due to the mass difference. The method is applied to measure the elastic cross section at the Feshbach resonance that we pre...
متن کاملAn interacting Fermi-Fermi mixture at the crossover of a narrow Feshbach resonance
This work describes experiments with quantum-degenerate atomic mixtures at ultracold temperatures, where quantum statistics determine macroscopic system properties. The first heteronuclear molecules at ultracold temperatures are formed in a quantum degenerate two-species Fermi-Fermi mixture on the repulsive side of a narrow s-wave Feshbach resonance. Elastic collisions in this mixture are inves...
متن کاملResonance superfluidity in a quantum degenerate Fermi gas.
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 ((40)K), and find that for achievable experimental conditions, the transition to a superfluid phase is possible at the high critical temperature of about 0.5T(F). Observation of superfluidity in this regime woul...
متن کاملTunable Fermi resonance in a C2F6 monolayer on graphite
The infrared absorption spectrum of C2F6 physisorbed on graphite in the commensurate 232 phase has two strong, narrow peaks associated with the n5 molecular vibration. They are interpreted as a Fermi resonance between n5 and the n81n11 combination band, which are shifted into near-coincidence by dynamic dipole coupling between the adsorbate molecules. The splitting and relative strengths have b...
متن کاملSpin-orbit coupled Fermi gases across a Feshbach resonance.
In this Letter we study both ground state properties and the superfluid transition temperature of a spin-1/2 Fermi gas across a Feshbach resonance with a synthetic spin-orbit coupling, using the mean-field theory and the exact solution of two-body problem. We show that a strong spin-orbit coupling can significantly enhance the pairing gap for negative scattering length a(s), due to increased de...
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ژورنال
عنوان ژورنال: Bulletin of the Chemical Society of Japan
سال: 1971
ISSN: 0009-2673,1348-0634
DOI: 10.1246/bcsj.44.2379