Item type:Doctoral Thesis, Open Access

Stoerungstheorie in vierter Ordnung fuer das halbgefuellte Hubbard-Modell im Limes hoher Dimensionen

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Date

2003-06-20

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Philipps-Universität Marburg
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Abstract

We calculate the zero-temperature self-energy to fourth order perturbation theory in the Hubbard-interaction U for the half-filled Hubbard model in infinite dimensions. For the Bethe-lattice with bare bandwidth W, we compare our perturbative Results for the self-energy, the single-particle density of states, and the momentum distribution to those from approximate analytical and numerical studies (FE-ED, DDMRG, NRG, IPT, RDA) of the model.

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Dates
Created: 2003Issued: 2003-06-20Updated: 2011-08-10
DOI
https://doi.org/10.17192/z2003.0122
Faculty
Fachbereich Physik
Publisher
Philipps-Universität Marburg
Language
ger
Data types
DoctoralThesis
Keywords
Fourth-Order Perturbation TheoryInfinite DimensionsLimes hoher Dimensionenhalbe BandfuellungHalf Filled Hubbard Model
DFG-subjects
Hubbard-ModellStörungstheorie
DDC-Numbers
530
License
https://rightsstatements.org/vocab/InC-NC/1.0/
URI
https://open.uni-marburg.de/handle/10.17192/z2003.0122
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Mahlert, Sandra Ju-Sil: Stoerungstheorie in vierter Ordnung fuer das halbgefuellte Hubbard-Modell im Limes hoher Dimensionen. : Philipps-Universität Marburg 2003-06-20. DOI: https://doi.org/10.17192/z2003.0122.

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