Correlated hopping in infinite dimensions: Rigorous local approach

Details Correlated hopping in infinite dimensions: Rigorous local approach Correlated hopping in infinite dimensions: Rigorous local approach

2002-05-13

arxiv.org/abs/cond-mat/0205265v1

physica status solidi (b) 236, 368 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 figures, submitted to the proceedings of the European Conference Physics Of Magnetism '02, July 1-5, 2002, Poznan,

Scientific paper

The general approach for the description of correlated hopping in the Dynamical Mean-Field Theory which is based on the expansion over electron hopping around the atomic limit is developed. It is formulated in terms of the local irreducible parts (cumulants) of Green's functions and allowed to calculate thermodynamical functions. As a limit case the Falicov-Kimball model with correlated hopping is considered.

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