The Schrödinger particle on the half-line with an attractive $\delta$-interaction: bound states and resonances

S. Fassari, M. Gadella, L. M. Nieto +1

In this paper we provide a detailed description of the eigenvalue $E_D(x_0)\le 0$ (respectively $E_N(x_0)\le 0$) of the self-adjoint Hamiltonian operator representing the n…