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

被引：29

作者：

BASKOUTAS, S

JANNUSSIS, A

MIGNANI, R

PAPATHEOU, V

机构：

[1] UNIV ROMA LA SAPIENZA 1, DIPARTIMENTO FIS, INFN, SEZ ROMA, I-00185 ROME, ITALY

[2] UNIV PATRAS, DEPT PHYS, GR-26110 PATRAI, GREECE

[3] UNIV ROME, DIPARTIMENTO FIS & AMALDI 3, I-00100 ROME, ITALY

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 1993年 / 26卷 / 17期

关键词：

D O I：

10.1088/0305-4470/26/17/012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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.

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页码：L819 / L824

页数：6

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