Perturbation theory of PT-symmetric Hamiltonians
Mathematical Physics
2009-11-11 v1 math.MP
Abstract
In the framework of perturbation theory the reality of the perturbed eigenvalues of a class of symmetric Hamiltonians is proved using stability techniques. We apply this method to symmetric unperturbed Hamiltonians perturbed by symmetric additional interactions.
Keywords
Cite
@article{arxiv.math-ph/0607039,
title = {Perturbation theory of PT-symmetric Hamiltonians},
author = {E. Caliceti and F. Cannata and S. Graffi},
journal= {arXiv preprint arXiv:math-ph/0607039},
year = {2009}
}