Non-hermitian models in higher dimensions

Details Non-hermitian models in higher dimensions Non-hermitian models in higher dimensions

2008-11-17

arxiv.org/abs/0811.2694v1

Physics

High Energy Physics

High Energy Physics - Theory

3 pages, no figure, revtex

Scientific paper

It is know that PT-symmetric models have real spectra provided the symmetry is not spontaneously broken. Even pseudo-hermitian models have real spectra, which enlarge the the class of non-hermitian models possessing real spectra. We however consider non-hermitian models in higher dimensions which are not necessarily explicit PT-symmetric nor pseudo-hermitian. We show that the models may generate real spectra depending upon the coupling constants of the Hamiltonian. Our models thus further generalize the class of non-hermitian systems, which possess real spectra.

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