Few-body ultracold reactions in a Bose-Fermi mixture

被引：3
作者：
Zhang, Chen [1 ]
von Stecher, Javier
Greene, Chris H.
机构：
[1] Univ Colorado, Dept Phys, Boulder, CO 80309 USA
来源：
PHYSICAL REVIEW A | 2012年 / 85卷 / 04期
关键词：
EINSTEIN CONDENSATION; GAS;
D O I：
10.1103/PhysRevA.85.043615
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The spectrum of two bosons and two fermions in a trap is calculated using a correlated-Gaussian basis throughout the range of a broad Fano-Feshbach resonance. The calculations provide a few-body solution to the magneto-association of fermionic Feshbach molecules. This solution is used to study the time evolution of the system as the scattering length changes, mimicking experiments with Bose-Fermi mixtures near Fano-Feshbach resonances. The structure of avoided crossings in the few-body spectrum enables an interpretation of the dynamics of the system as a sequence of Landau-Zener transitions. The calculated molecule formation rate is compared with experimental observations.
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页数：9
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