Stationary property of the thermodynamic potential of the Hubbard model in strong coupling diagrammatic approach for superconducting state

• Published in: Физика низких температур
• Date: 2012
• Main Authors: Moskalenko, V.A., Dohotaru, L.A., Digor, D.F., Cebotari, I.D.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2012
• Subjects: Свеpхпpоводимость, в том числе высокотемпеpатуpная
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/117894
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Stationary property of the thermodynamic potential of the Hubbard model in strong coupling diagrammatic approach for superconducting state / V.A. Moskalenko, L.A. Dohotaru, D.F. Digor, I.D. Cebotari // Физика низких температур. — 2012. — Т. 38, № 10. — С. 1167–1174. — Бібліогр.: 21 назв. — англ.

Diagrammatic analysis for normal state of Hubbard model proposed in our previous paper is generalized and used to investigate superconducting state of this model. We use the notion of charge quantum number to describe the irreducible Green's function of the superconducting state. As in the pr...