Asymptotically vanishing PT-symmetric potentials and negative-mass Schrödinger equations

Miloslav Znojil*, Petr Siegl, Géza Lévai

*Corresponding author for this work

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9 Citations (Scopus)


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 languageEnglish
Pages (from-to)1921-1924
Number of pages4
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number22
Publication statusPublished - 11 May 2009
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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