22 citations · 38 across the 8 of their papers we have counts for
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quant-ph2009★ 22 cited
Scattering in the PT-symmetric Coulomb potential
Geza Levai, Petr Siegl, Miloslav Znojil
Scattering on the -symmetric Coulomb potential is studied along a U-shaped trajectory circumventing the origin in the complex plane from below. This trajectory refle…
math-ph2009★ 2 cited
Surprising spectra of PT-symmetric point interactions
Petr Siegl
Spectra of the second derivative operators corresponding to the special PT-symmetric point interactions are studied. The results are partly the completion of those obtained in [1].…
quant-ph2009★ 12 cited
Asymptotically vanishing PT-symmetric potentials and negative-mass Schroedinger equations
Miloslav Znojil, Petr Siegl, Géza Lévai
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 instabili…