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arXiv · 0709.1413

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

Joerg Buenemann·Florian Gebhard
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Abstract

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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Joerg Buenemann, Florian Gebhard. 2007-11-21. Equivalence of Gutzwiller and slave-boson mean-field theories for multi-band Hubbard models. https://doi.org/10.1103/physrevb.76.193104

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