Complex Spectrum of a Spontaneously Unbroken PT Symmetric Hamiltonian
Quantum Physics
2007-05-23 v1
Abstract
It is believed that unbroken PT symmetry is sufficient to guarantee that the spectrum of a non-Hermitian Hamiltonian is real. We prove that this is not true. We study a Hamiltonian with complex spectrum for which PT symmetry is not spontaneously broken.
Cite
@article{arxiv.quant-ph/0703235,
title = {Complex Spectrum of a Spontaneously Unbroken PT Symmetric Hamiltonian},
author = {C. Yuce},
journal= {arXiv preprint arXiv:quant-ph/0703235},
year = {2007}
}
Comments
4 pages, no figures