Critical strength of attractive central potentials

Details Critical strength of attractive central potentials Critical strength of attractive central potentials

2004-11-02

arxiv.org/abs/math-ph/0411005v1

J. Phys. A37, 11243 (2004)

Physics

Mathematical Physics

18 pages

Scientific paper

10.1088/0305-4470/37/46/010

We obtain several sequences of necessary and sufficient conditions for the existence of bound states applicable to attractive (purely negative) central potentials. These conditions yields several sequences of upper and lower limits on the critical value, $g_{\rm{c}}^{(\ell)}$, of the coupling constant (strength), $g$, of the potential, $V(r)=-g v(r)$, for which a first $\ell$-wave bound state appears, which converges to the exact critical value.

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