arXiv:math-ph/0607039 · Journal of Physics A Mathematical and General

Perturbation theory of symmetric Hamiltonians

Emanuela Caliceti, F. Cannata, S. Graffi

Published Jul 26, 2006• 36 citations

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.

DOI: 10.1088/0305-4470/39/32/s06

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