Abstract
In paper I [M. Znojil, G. Lévai, Phys. Lett. A 271 (2000) 327] we introduced the Coulomb-Kratzer bound-state problem in its crypto-Hermitian, PT-symmetric version. An instability of the original model is revealed here. A necessary stabilization is achieved, for almost all couplings, by an unusual, negative choice of the bare mass in Schrödinger equation.
Original language | English |
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Pages (from-to) | 1921-1924 |
Number of pages | 4 |
Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |
Volume | 373 |
Issue number | 22 |
DOIs | |
Publication status | Published - 11 May 2009 |
Externally published | Yes |
ASJC Scopus subject areas
- General Physics and Astronomy