(1) Department of Physics, University of Pretoria, Pretoria, 0002, South Africa;(2) School of Life Sciences, The University of Sussex, Brighton, Sussex, BN1 9QH, UK
Abstract:
Relationships between the coupling constant and the binding energy of threshold bound states are obtained in a simple manner from an iterative algorithm for solving the eigenvalue problem. The absence of threshold bound states in higher dimensions can be easily understood.