Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki
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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2015, Volume 101, Issue 3, Pages 218–223
DOI: https://doi.org/0.7868/S0370274X15030133 (Mi jetpl4548) 		 
BIOPHYSICS

Low-temperature properties of the Hubbard model

R. O. Zaitsev

Moscow Institute of Physics and Technology
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DOI: https://doi.org/0.7868/S0370274X15030133
Abstract: Self-consistent equations corresponding to the single-loop approximation at an arbitrary relation between the Hubbard energy $U$ and hop integral $t$ have been obtained for the determination of the energy spectrum in the Hubbard model. The conditions of the insulator-metal transition, as well as the conditions for the transition from the paradielectric to antiferromagnetic state (spin-density wave), have been determined in the case of an exactly half-filled band.
Received: 21.10.2014
Revised: 11.12.2014
English version:
Journal of Experimental and Theoretical Physics Letters, 2015, Volume 101, Issue 3, Pages 199–205
DOI: https://doi.org/10.1134/S0021364015030157
Bibliographic databases:
Document Type: Article
Language: Russian
Citation: R. O. Zaitsev, “Low-temperature properties of the Hubbard model”, Pis'ma v Zh. Èksper. Teoret. Fiz., 101:3 (2015), 218–223; JETP Letters, 101:3 (2015), 199–205
Citation in format AMSBIB
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