121 citations · 1.1k across the 60 of their papers we have counts for
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Solvable PT-symmetric model with a tunable interspersion of non-merging levels
Miloslav Znojil
We study the spectrum in such a PT-symmetric square well of a diameter L where the "strength of the non-Hermiticity" is controlled by the two parameters, viz., by an imaginary coup…
Periodic square-well potential and spontaneous breakdown of PT-symmetry
V. Jakubsky, M. Znojil
A particle moving on a circle in a purely imaginary one-step potential is studied in both the exact and broken -symmetric regime.
Pseudo-Hermitian approach to energy-dependent Klein-Gordon models
Miloslav Znojil, Hynek Bila, Vit Jakubsky
The relativistic Klein-Gordon system is studied as an illustration of Quantum Mechanics using non-Hermitian operators as observables. A version of the model is considered containin…
Linear representation of energy-dependent Hamiltonians
Miloslav Znojil
Effective (i.e., subspace-constrained) Hamiltonians become, by construction, energy-dependent while all the energy-dependent forces prove non-linear because the energy itself is me…