A class of non-selfadjoint, PT-symmetric operators is identified similar to a selfadjoint one, thus entailing the reality of the spectrum. The similarity transformation is explicitly constructed through the method of the quantum normal form, whose convergence (uniform with respect to the Planck constant) is proved. Further consequences of the uniform convergence of the quantum normal form are the establishment of an exact quantization formula for the eigenvalues and the integrability of the classical hamiltonian corresponding to the given PT-symmetric operator.

Convergent quantum normal forms, PT-symmetry and reality of the spectrum / E. Caliceti; S. Graffi. - In: ATTI DELLA ACCADEMIA NAZIONALE DEI LINCEI. RENDICONTI LINCEI. MATEMATICA E APPLICAZIONI. - ISSN 1720-0768. - STAMPA. - 24:3(2013), pp. 385-407. [10.4171/RLM/658]

Convergent quantum normal forms, PT-symmetry and reality of the spectrum

CALICETI, EMANUELA;GRAFFI, SANDRO
2013

Abstract

A class of non-selfadjoint, PT-symmetric operators is identified similar to a selfadjoint one, thus entailing the reality of the spectrum. The similarity transformation is explicitly constructed through the method of the quantum normal form, whose convergence (uniform with respect to the Planck constant) is proved. Further consequences of the uniform convergence of the quantum normal form are the establishment of an exact quantization formula for the eigenvalues and the integrability of the classical hamiltonian corresponding to the given PT-symmetric operator.
2013
Convergent quantum normal forms, PT-symmetry and reality of the spectrum / E. Caliceti; S. Graffi. - In: ATTI DELLA ACCADEMIA NAZIONALE DEI LINCEI. RENDICONTI LINCEI. MATEMATICA E APPLICAZIONI. - ISSN 1720-0768. - STAMPA. - 24:3(2013), pp. 385-407. [10.4171/RLM/658]
E. Caliceti; S. Graffi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/209223
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