Numerical minimisation of Gutzwiller energy functionals
J\"org B\"unemann, Florian Gebhard, Tobias Schickling, Werner Weber
TL;DR
This paper introduces an efficient numerical scheme for minimizing Gutzwiller energy functionals, applicable to multi-band Hubbard models, and demonstrates its successful use in various numerical studies.
Contribution
It presents a comprehensive and versatile numerical method for Gutzwiller energy minimization applicable to all Gutzwiller variational wave functions.
Findings
Method successfully applied in multiple numerical studies
Covers all cases of Gutzwiller variational wave functions
Enhances computational efficiency in multi-band Hubbard models
Abstract
We give a comprehensive introduction into an efficient numerical scheme for the minimisation of Gutzwiller energy functionals in studies on multi-band Hubbard models. Our method covers all conceivable cases of Gutzwiller variational wave functions and has been used successfully in previous numerical studies.
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