<div class="csl-bib-body">
<div class="csl-entry">Steiner, K. (2018). <i>Electronic correlations in the Hubbard model on the Kagome lattice</i> [Diploma Thesis, Technische Universität Wien]. reposiTUm. https://doi.org/10.34726/hss.2018.60173</div>
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dc.identifier.uri
https://doi.org/10.34726/hss.2018.60173
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/7318
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dc.description
Abweichender Titel nach Übersetzung der Verfasserin/des Verfassers
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dc.description.abstract
The aim of this thesis is the investigation of electronic correlations in the intermediate region between the metallic and insulating phase of the frustrated Kagome lattice. Most previous studies address the ground state of the Heisenberg model on the Kagome lattice, and therefore only the purely insulating phase. However, we go a step further by studying the Hubbard model on the Kagome lattice and thus including metallic contributions. We solve the Hubbard model with the determinant quantum Monte Carlo (DQMC) method and compare to results of the dynamical mean field theory (DMFT). First we study the half-filled system across the range of the Mott-Hubbard metal-insulator transition, and then the electron doped system, where the chemical potential is in the center of the flat band. In various post-processing steps we calculate the k-integrated spectral functions, the k-resolved spectral functions, the equal-time magnetic structure factors and the dynamic magnetic structure factors.
en
dc.language
English
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dc.language.iso
en
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dc.rights.uri
http://rightsstatements.org/vocab/InC/1.0/
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dc.subject
Electronische Korrelationen
de
dc.subject
Quanten-Monte-Carlo
de
dc.subject
DQMC
de
dc.subject
Dynamische Molekularfeldtheorie
de
dc.subject
Electronic Korrelations
en
dc.subject
Quantum Monte Carlo
en
dc.subject
DQMC
en
dc.subject
Dynamical mean field theory
en
dc.title
Electronic correlations in the Hubbard model on the Kagome lattice
en
dc.title.alternative
Elektronische Korrelation im Hubbard-Modell auf dem Kagome-Gitter