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dc.contributor.advisorUhrig, Götz Silvester-
dc.contributor.authorKrones, Jörn-
dc.date.accessioned2014-12-12T07:43:30Z-
dc.date.available2014-12-12T07:43:30Z-
dc.date.issued2014-
dc.identifier.urihttp://hdl.handle.net/2003/33785-
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-6863-
dc.description.abstractThe method of continuous unitary transformations (CUTs) is applied to the Anderson impurity and the Kondo model aiming at the systematic derivation of convergent e ective models. If CUTs are applied in a conventional way, diverging di erential equations occur. Similar to poor mans scaling the energy scale, below which the couplings diverge, corresponds to the Kondo temperature TK. We present a way to apply CUTs to the Kondo and to the Anderson impurity model so that no divergences occur but a converged e ective low-energy model is derived with small nite parameters at arbitrarily small energies. The ground state corresponds to a bound singlet with a binding energy given by the Kondo temperature TK.en
dc.language.isoenen
dc.subjectContinuous unitary transformationsen
dc.subjectCUTen
dc.subjectFlow equationen
dc.subjectKondo effecten
dc.subjectKondo modelen
dc.subjectAnderson impurity modelen
dc.subjectEffective modelsen
dc.subject.ddc530-
dc.titleEffective models for the single impurity Anderson and Kondo model from continuous unitary transformationsen
dc.typeTextde
dc.contributor.refereeAnders, Frithjof-
dc.date.accepted2014-11-27-
dc.type.publicationtypedoctoralThesisen
dc.subject.rswkSupraleitungde
dc.subject.rswkKondo-Effektde
dcterms.accessRightsopen access-
Appears in Collections:Theoretische Physik I

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