Equivalence of Gutzwiller and slave-boson mean-field theories for multi-band Hubbard models

Details Equivalence of Gutzwiller and slave-boson mean-field theories for multi-band Hubbard models Equivalence of Gutzwiller and slave-boson mean-field theories for multi-band Hubbard models

2007-09-10

arxiv.org/abs/0709.1413v2

Phys. Rev. B 76, 193104 (2007)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages

Scientific paper

10.1103/PhysRevB.76.193104

We demonstrate that a recently introduced slave-boson mean-field theory is
equivalent to our Gutzwiller theory for multi-band Hubbard models with general
onsite interactions. We relate the different objects that appear in both
approaches at zero temperature and discuss the limitations of both methods.

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