Approximate analytical dynamical mean-field approach to strongly correlated electron systems

• Published in: Condensed Matter Physics
• Date: 2000
• Main Author: Stasyuk, I.V.
• Format: Article
• Language: English
• Published: Інститут фізики конденсованих систем НАН України 2000
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/121033
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Approximate analytical dynamical mean-field approach to strongly correlated electron systems / I.V. Stasyuk // Condensed Matter Physics. — 2000. — Т. 3, № 2(22). — С. 437-456. — Бібліогр.: 27 назв. — англ.

An approximate analytical scheme of the dynamical mean-field theory
 (DMFT), that is used for electron systems with Hubbard correlations and is
 exact in the limit of the infinite dimensionality of a space, is developed. The
 effective single-site problem arising in the frame...