Asymptotically vanishing PT-symmetric potentials and negative-mass Schroedinger equations
arXiv:0903.5468 · doi:10.1016/j.physleta.2009.03.070
Abstract
In paper I [M. Znojil and G. Lévai, Phys. Lett. A 271 (2000) 327] we introduced the Coulomb - Kratzer bound-state problem in its cryptohermitian, PT-symmetric version. An instability of the original model is revealed and its necessary stabilization is achieved, for almost all couplings, by an unusual, negative choice of the bare mass in Schroediner equation.
15 pp, 3 figs
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Cited by in corpus (6)
- Scattering in the PT-symmetric Coulomb potential
- Schroedinger equations with indefinite effective mass
- Anharmonic Oscillators with Infinitely Many Real Eigenvalues and PT-Symmetry
- Planarizable Supersymmetric Quantum Toboggans
- Swanson Hamiltonian: non-PT-symmetry phase
- Coulomb potential and the paradoxes of PT-symmetrization