Two-parametric PT-symmetric quartic family
Mathematical Physics
2015-05-28 v2 Complex Variables
math.MP
Abstract
We describe a parametrization of the real spectral locus of the two-parametric family of PT-symmetric quartic oscillators. For this family, we find a parameter region where all eigenvalues are real, extending the results of Dorey, Dunning, Tateo and Shin.
Cite
@article{arxiv.1105.2742,
title = {Two-parametric PT-symmetric quartic family},
author = {Alexandre Eremenko and Andrei Gabrielov},
journal= {arXiv preprint arXiv:1105.2742},
year = {2015}
}
Comments
23 pages, 15 figures