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Diagrammatic analysis of the Hubbard model: Stationary property of the thermodynamic potential

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dc.contributor.author MOSKALENKO, V. A.
dc.contributor.author DOHOTARU, L. A.
dc.date.accessioned 2021-11-24T07:52:02Z
dc.date.available 2021-11-24T07:52:02Z
dc.date.issued 2010
dc.identifier.citation MOSKALENKO, V. A., DOHOTARU, L. A. Diagrammatic analysis of the Hubbard model: Stationary property of the thermodynamic potential. In: Physics of Particles and Nuclei, 2010, V. 41, Iss. 7, pp. 1039-1043. ISSN 1531-8559. en_US
dc.identifier.issn 1531-8559
dc.identifier.uri https://doi.org/10.1134/S1063779610070130
dc.identifier.uri http://repository.utm.md/handle/5014/18150
dc.description Access full text – https://doi.org/10.1134/S1063779610070130 en_US
dc.description.abstract Diagrammatic approach proposed many years ago for strong correlated Hubbard model is developed for analyzing of the thermodynamic potential properties. The new exact relation between such renormalized quantities as thermodynamic potential, one-particle propagator and correlation function is established. This relation contains additional integration of the one-particle propagator by the auxiliary constant. The vacuum skeleton diagrams constructed from irreducible Green’s functions and tunneling propagator lines are determined and special functional is introduced. The properties of such functional are investigated and its relation to the thermodynamic potential is established. The stationary properties of this functional with respect to first order changing of the correlation function is demonstrated and as a consequence the stationary properties of the thermodynamic potential is proved. en_US
dc.language.iso en en_US
dc.publisher Springer Nature Switzerland en_US
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject Hubbard model en_US
dc.subject thermodynamic potential en_US
dc.subject thermodynamic perturbation theory en_US
dc.title Diagrammatic analysis of the Hubbard model: Stationary property of the thermodynamic potential en_US
dc.type Article en_US


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