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arXiv · 0812.4992

Universality and Leading Corrections in Few-Body Systems

Lucas Platter
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Abstract

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.

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Lucas Platter. 2008-12-30. Universality and Leading Corrections in Few-Body Systems. https://doi.org/10.1007/s00601-009-0032-9

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