Functional renormalization group approach to the four-body problem

被引：0
|
作者：
Schmidt, R. [1 ]
Moroz, S. [2 ]
机构：
[1] Tech Univ Munich, Dept Phys, James Franck Str, D-85748 Garching, Germany
[2] Heidelberg Univ, Inst Theoret Phys, D-69120 Heidelberg, Germany
来源：
19TH INTERNATIONAL IUPAP CONFERENCE ON FEW-BODY PROBLEMS IN PHYSICS | 2009年 / 3卷
关键词：
QUANTUM; SYSTEM;
D O I：
10.1051/epjconf/20100302006
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
We present a renormalization group analysis of the non-relativistic four-boson problem by means of a simple model with pointlike three- and four-body interactions. We investigate in particular the unitarity point where the scattering length is infinite and all energies are at the atom threshold. We find that the four-body problem behaves truly universally, independent of any four-body parameter confirming the findings of Platter et al. and von Stecher et al. [1-3].
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页数：8
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