Perturbation theory of PT-symmetric Hamiltonians
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🧮 math-ph
math.MP
keywords
hamiltonianssymmetricperturbationperturbedtheoryadditionalapplyclass
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In the framework of perturbation theory the reality of the perturbed eigenvalues of a class of $\PT$symmetric Hamiltonians is proved using stability techniques. We apply this method to $\PT$symmetric unperturbed Hamiltonians perturbed by $\PT$symmetric additional interactions.
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