Two-particle self-consistent method for the multi-orbital Hubbard model
- One of the most challenging problems in solid state systems is the microscopic analysis of electronic correlations. A paramount minimal model that encodes correlation effects is the Hubbard Hamiltonian, which—regardless of its simplicity—is exactly solvable only in a few limiting cases and approximate many-body methods are required for its solution. In this review, an overview on the non-perturbative two-particle self-consistent method (TPSC), which was originally introduced to describe the electronic properties of the single-band Hubbard model, is presented. A detailed derivation of the multi-orbital generalization of TPSC is introduced here and particular features of the method on exemplary interacting models in comparison to dynamical mean-field theory results are discussed.
Verfasserangaben: | Karim ZantoutORCiDGND, Steffen BackesORCiDGND, Roser ValentíORCiDGND |
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URN: | urn:nbn:de:hebis:30:3-638711 |
DOI: | https://doi.org/10.1002/andp.202000399 |
ISSN: | 1521-3889 |
Titel des übergeordneten Werkes (Deutsch): | Annalen der Physik |
Verlag: | Wiley-VCH |
Verlagsort: | Berlin |
Dokumentart: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Datum der Veröffentlichung (online): | 15.01.2021 |
Datum der Erstveröffentlichung: | 15.01.2021 |
Veröffentlichende Institution: | Universitätsbibliothek Johann Christian Senckenberg |
Datum der Freischaltung: | 16.03.2022 |
Freies Schlagwort / Tag: | correlated electrons; multi-orbital Hubbard model; non-perturbative methods |
Jahrgang: | 533 |
Ausgabe / Heft: | 2, art. 2000399 |
Seitenzahl: | 19 |
Erste Seite: | 1 |
Letzte Seite: | 19 |
Bemerkung: | R.V. acknowledges the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) for funding through TRR 288 - 422213477 (project B05). |
HeBIS-PPN: | 49337776X |
Institute: | Physik |
DDC-Klassifikation: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
Sammlungen: | Universitätspublikationen |
Lizenz (Deutsch): | Creative Commons - Namensnennung 4.0 |