Universality and Leading Corrections in Few-Body Systems

被引：3
|
作者：
Platter, L. [1 ]
机构：
[1] Ohio State Univ, Dept Phys, Columbus, OH 43120 USA
来源：
FEW-BODY SYSTEMS | 2009年 / 45卷 / 2-4期
关键词：
RESONANTLY-INTERACTING PARTICLES; LARGE SCATTERING LENGTH; FORCE-RANGE;
D O I：
10.1007/s00601-009-0032-9
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A large two-body scattering length leads to universal behavior in few-body systems. In particular, the three-body system displays interesting features such as exact discrete scale invariance in the bound state spectrum in the limit of infinite scattering length. Here, I will discuss how an effective field theory ( EFT) can be used to study these features and how the finite range of the underlying interaction impacts the bound state spectrum at first order in the EFT expansion.
引用
收藏
页码：211 / 214
页数：4
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