Functional renormalization group approach to electronic structure calculations for systems without translational symmetry

URN to cite this document:: urn:nbn:de:bvb:355-epub-460978
DOI to cite this document:: 10.5283/epub.46097

Seiler, Christian ; Evers, Ferdinand

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Date of publication of this fulltext: 25 Jun 2021 04:23

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Abstract

A formalism for electronic-structure calculations is presented that is based on the functional renormalization group (FRG). The traditional FRG has been formulated for systems that exhibit a translational symmetry with an associated Fermi surface, which can provide the organization principle for the renormalization group (RG) procedure. We here advance an alternative formulation, where the RG ...