FAR EASTERN BRANCH OF THE RUSSIAN ACADEMY OF SCIENCES
INSTITUTE OF APPLIED MATHEMATICS KHABAROVSK DIVISION
Far Eastern Mathematical Journal
Structure of essential spectrum and discrete spectra of the energy operator of five-electron systems in the Hubbard model. Fourth quartet state |
S. M. Tashpulatov |
2023, issue 1, P. 112-133 DOI: https://doi.org/10.47910/FEMJ202310 |
Abstract |
| We consider the energy operator of five-electron systems in the Hubbard model and investigate the structure of essential spectra and discrete spectrum of the system in the fourth quartet state of the system. We show that the essential spectrum of the system in fourth quartet states is the union of at most seven segments, and discrete spectrum of the system is at most one point. |
Keywords: five-electron system, Hubbard Model, quartet state, doublet state, sextet state, essential spectra, discrete spectra. |
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References |
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