Universality in Four-Body Scattering

Universality in Four-Body Scattering
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四体散射的普遍性

DOI:
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发表时间:
2011
期刊:
影响因子:
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通讯作者:
L. Platter
L. Platter
中科院分区:
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文献类型:
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作者:
A. Deltuva;R. Lazauskas;L. Platter

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通过求解跃迁算符的动量空间积分方程组或波函数的位形空间方程,研究了在大的两体散射长度限制下的四体系统。发现了原子-三聚体和二聚体-二聚体散射观测的一些普遍结果。此外,我们还讨论了宇宙四体系统除了已知的两个S波态之外是否还有附加态的问题。
The four-body system is studied in the limit of large two-body scattering length by solving momentum-space integral equations for the transition operators or, alternatively, configuration-space equations for wave function. A number of universal results for atom-trimer and dimer–dimer scattering observables are found. We furthermore address the question whether the universal four-body systems contain additional states besides the known two S-wave states.