Spectral bounds for the cutoff Coulomb potential
arXiv:math-ph/0201021 · doi:10.1016/S0375-9601(02)00025-7
Abstract
The method of potential envelopes is used to analyse the bound-state spectrum of the Schroedinger Hamiltonian H = -Delta -v/(r+b), where v and b are positive. We established simple formulas yielding upper and lower energy bounds for all the energy eigenvalues.
arXiv comment11 pages, 2 figures