On the Spectrum of a Discrete Non-Hermitian Quantum System

Symmetry, Integrability and Geometry: Methods and Applications

关键词: difference operator;    non-Hermiticity;    spectrum;    eigenvalue;    eigenvector;    completely continuous operator;   

DOI  :  

来源: DOAJ

【 摘 要 】

In this paper, we develop spectral analysis of a discrete non-Hermitian quantum system that is a discrete counterpart of some continuous quantum systems on a complex contour. In particular, simple conditions for discreteness of the spectrum are established.

【 授权许可】

Unknown