The structure of essential spectra and discrete spectrum of four-electron systems in the Hubbard model in a singlet state
- Autores: Tashpulatov S.1
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Afiliações:
- National University of Republic of Uzbekistan, Named by Mirzo Ulugbek, Faculty of Physics
- Edição: Volume 38, Nº 3 (2017)
- Páginas: 530-541
- Seção: Article
- URL: https://journals.rcsi.science/1995-0802/article/view/199390
- DOI: https://doi.org/10.1134/S1995080217030246
- ID: 199390
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Resumo
We study the spectral properties of four-electron systems in the Hubbard model in the quintet and singlet states. We proved the essential spectra of the four-electron systems in the quintet state is a single segment, and four-electron anti-bound states or four-electron bound states is absent. In the system exists two four-electron singlet states, and they are different origins. In the singlet states the essential spectra of four-electron systems is consists of the union no more three segments. Furthermore, in the system exists no more one four-electron anti-bound states or no more one bound states.
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Sobre autores
S. Tashpulatov
National University of Republic of Uzbekistan, Named by Mirzo Ulugbek, Faculty of Physics
Autor responsável pela correspondência
Email: sadullatashpulatov@yandex.ru
Uzbequistão, Tashkent
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