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PT-symmetric Quantum Chain Models

open access: yesActa Polytechnica, 2007
A review is given of certain tridiagonal N-dimensional non-Hermitian J-parametric real-matrix quantum Hamiltonians H(N). The domains Ɗ(N) of reality of their spectra of energies are studied, with particular attention paid to their exceptional-point ...
M. Znojil
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