Show simple item record

Fictive Impurity Approach to Dynamical Mean Field Theory

dc.contributor.advisorMonien, Hartmut
dc.contributor.authorFuhrmann, Andreas
dc.date.accessioned2020-04-08T23:10:05Z
dc.date.available2020-04-08T23:10:05Z
dc.date.issued2006
dc.identifier.urihttp://hdl.handle.net/20.500.11811/2646
dc.description.abstractA new extension of the dynamical mean-field theory was investigated in the regime of large Coulomb repulsion. A number of physical quantities such as single-particle density of states, spin-spin correlation, internal energy and Neel temperature, were computed for a two-dimensional Hubbard model at half-filling. The numerical data were compared to our analytical results as well as to the results computed using the dynamical cluster approximation. In the second part of this work we consider a two-plane Hubbard model. The transport properties of the bilayer were investigated and the phase diagram was obtained.
dc.language.isoeng
dc.rightsIn Copyright
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectHubbard Modell
dc.subjectDMFT
dc.subjectNeel Phasenübergang
dc.subjectSCA
dc.subjectEnergie
dc.subjectZustandsdichte
dc.subjectSpin-Spin Korrelation
dc.subjectPhasenübergang
dc.subjectoptische Leitfähigkeit
dc.subjectBand Isolator
dc.subjectMott Isolator
dc.subjectPhasendiagramm
dc.subject.ddc530 Physik
dc.titleFictive Impurity Approach to Dynamical Mean Field Theory
dc.typeDissertation oder Habilitation
dc.publisher.nameUniversitäts- und Landesbibliothek Bonn
dc.publisher.locationBonn
dc.rights.accessRightsopenAccess
dc.identifier.urnhttps://nbn-resolving.org/urn:nbn:de:hbz:5N-08208
ulbbn.pubtypeErstveröffentlichung
ulbbnediss.affiliation.nameRheinische Friedrich-Wilhelms-Universität Bonn
ulbbnediss.affiliation.locationBonn
ulbbnediss.thesis.levelDissertation
ulbbnediss.dissID820
ulbbnediss.date.accepted2006-07-07
ulbbnediss.fakultaetMathematisch-Naturwissenschaftliche Fakultät
dc.contributor.coRefereeMillis, Andrew J.


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

The following license files are associated with this item:

InCopyright