Local moment approach to multi-orbital single impurity Anderson model; application to dynamical mean-field theory

Details Local moment approach to multi-orbital single impurity Anderson model; application to dynamical mean-field theory Local moment approach to multi-orbital single impurity Anderson model; application to dynamical mean-field theory

2005-06-15

arxiv.org/abs/cond-mat/0506361v2

Physica B 378-380 (2006) 297-298

Physics

Condensed Matter

Strongly Correlated Electrons

2 pages, 1 figure

Scientific paper

10.1016/j.physb.2006.01.109

Using a local moment approach of Logan et al. we developed a solver for a multi-orbital single impurity Anderson model. The existence of the local moments is taken from the outset and their values are determined through variational principle by minimizing the corresponding ground state energy. The method is used to solve the dynamical mean-field equations for the multi-orbital Hubbard model. In particular, the Mott-Hubbard metal--insulator transition is addressed within this approach.

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