Effective-range corrections to three-body recombination for atoms with large scattering length

被引：19
作者：
Hammer, H. -W. [1 ]
Lahde, Timo A.
Platter, L.
机构：
[1] Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theor, D-53115 Bonn, Germany
[2] Univ Washington, Dept Phys, Seattle, WA 98195 USA
[3] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA
来源：
PHYSICAL REVIEW A | 2007年 / 75卷 / 03期
关键词：
D O I：
10.1103/PhysRevA.75.032715
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Few-body systems with large scattering length a have universal properties that do not depend on the details of their interactions at short distances. The rate constant for three-body recombination of bosonic atoms of mass m into a shallow dimer scales as ha(4)/m times a log-periodic function of the scattering length. We calculate the leading and subleading corrections to the rate constant, which are due to the effective range of the atoms, and study the correlation between the rate constant and the atom-dimer scattering length. Our results are applied to He-4 atoms as a test case.
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页数：5
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