Theoretical and Mathematical Physics

Dynamic mean field in the Hubbard model

A. M. Sarry, M. F. Sarry

Institute of Experimental Physics, Institute of Theoretical and Computational Physics, Russian Federal Nuclear Center, Sarov

Abstract: In the framework of the one-impurity problem formulated for the nondegenerate Hubbard Hamiltonian, general expressions are derived for all its principal correlation functions, as well as its retarded and advanced thermodynamic (Matsubara) Green functions. These results are analyzed for the case of zero temperature.

Received: 15.10.2009

 English version: Technical Physics, 2010, 55:6, 762–767

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