Green’s functions of infinite-U asymmetric Hubbard model: Falicov-Kimball limit

• Published in: Condensed Matter Physics
• Date: 2003
• Main Authors: Stasyuk, I.V., Hera, O.B.
• Format: Article
• Language: English
• Published: Інститут фізики конденсованих систем НАН України 2003
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/120689
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Green’s functions of infinite-U asymmetric Hubbard model: Falicov-Kimball limit / I.V. Stasyuk, O.B. Hera // Condensed Matter Physics. — 2003. — Т. 6, № 1(33). — С. 127-143. — Бібліогр.: 24 назв. — англ.

The asymmetric Hubbard model is used in investigating the lattice gas of the moving particles of two types. The model is considered within the dynamical mean-field method. The effective single-site problem is formulated in terms of the auxiliary Fermi-field. To solve the problem an approximate a...