On the Spectrum of a Discrete Non-Hermitian Quantum System
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.
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| Autor principal: | |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
National Academy of Science of Ukraine
2009-01-01
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| coleção: | Symmetry, Integrability and Geometry: Methods and Applications |
| Assuntos: | |
| Acesso em linha: | http://dx.doi.org/10.3842/SIGMA.2009.007 |
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