Three-body systems in physics of cold atoms and halo nuclei

TL;DR

This paper reviews how effective field theory describes universal low-energy properties of three-body systems like cold atoms and halo nuclei, emphasizing their insensitivity to short-range interaction details.

Contribution

It provides a comprehensive review of effective-field-theory applications to three-body systems in cold atoms and halo nuclei, highlighting universal features and theoretical approaches.

Findings

Effective field theory captures universal low-energy behavior.

Three-body contact interactions are key to understanding these systems.

Insensitivity to short-range interaction details simplifies modeling.

Abstract

Few-body systems, such as cold atoms and halo nuclei, share universal features at low energies, which are insensitive to the underlying inter-particle interactions at short ranges. These low-energy properties can be investigated in the framework of effective field theory with two-body and three-body contact interactions. I review the effective-field-theory studies of universal physics in three-body systems, focusing on the application in cold atoms and halo nuclei.