We study the tunnel effect for an inverted oscillator with complex frequency. The solution of the corresponding non-Hermitian (NH) Schrodinger equation is found by the evolution operator method, based on the SU(1, 1) structure of the Hamiltonian and the Wei-Norman theorem. We put forward a generalization of dwell time for NH systems built up from their biorthonormal states. The resulting tunnelling time turns out to be complex.

Baskoutas, S., Jannussis, A., Mignani, R., Papatheou, V. (1993). TUNNELING PROCESS FOR NON-HERMITIAN SYSTEMS - THE COMPLEX-FREQUENCY INVERTED OSCILLATOR. JOURNAL OF PHYSICS. A, MATHEMATICAL AND GENERAL, 26(17), L819-L824 [10.1088/0305-4470/26/17/012].

TUNNELING PROCESS FOR NON-HERMITIAN SYSTEMS - THE COMPLEX-FREQUENCY INVERTED OSCILLATOR

MIGNANI, ROBERTO;
1993-01-01

Abstract

We study the tunnel effect for an inverted oscillator with complex frequency. The solution of the corresponding non-Hermitian (NH) Schrodinger equation is found by the evolution operator method, based on the SU(1, 1) structure of the Hamiltonian and the Wei-Norman theorem. We put forward a generalization of dwell time for NH systems built up from their biorthonormal states. The resulting tunnelling time turns out to be complex.
1993
Baskoutas, S., Jannussis, A., Mignani, R., Papatheou, V. (1993). TUNNELING PROCESS FOR NON-HERMITIAN SYSTEMS - THE COMPLEX-FREQUENCY INVERTED OSCILLATOR. JOURNAL OF PHYSICS. A, MATHEMATICAL AND GENERAL, 26(17), L819-L824 [10.1088/0305-4470/26/17/012].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/132340
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