<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "A Combined Functional Renormalization and Mean-Field Study of Competing Orders in the Two-Dimensional Hubbard Model"^^ . "The primary subject of this thesis is the two-dimensional Hubbard model. Using the functional renormalization Group in static approximation we will present the phase diagram of the 2D-Hubbard model and refine it by including frequency dependencies and full self-energy effects. The focus will fall on the vicinity of the quantum critical point, where the system shows a non-Fermi-liquid-like behavior. In mean-field calculations, we show that the frequency dependence of the self-energy has a substantial impact on the ground state. Furthermore, we investigate the relation between the density-density interaction and the quasiparticle lifetime. During the course of our study, we will develop a saddle-point formulation of Schwinger-Dyson equations and present a new renormalization group scheme which is valid for all fermionic systems."^^ . "2017" . . . . . . . "Kambis"^^ . "Veschgini"^^ . "Kambis Veschgini"^^ . . . . . . "A Combined Functional Renormalization and Mean-Field Study of Competing Orders in the Two-Dimensional Hubbard Model (PDF)"^^ . . . "VESCHGINI_THESIS_PDFA.pdf"^^ . . . "A Combined Functional Renormalization and Mean-Field Study of Competing Orders in the Two-Dimensional Hubbard Model (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "A Combined Functional Renormalization and Mean-Field Study of Competing Orders in the Two-Dimensional Hubbard Model (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "A Combined Functional Renormalization and Mean-Field Study of Competing Orders in the Two-Dimensional Hubbard Model (Other)"^^ . . . . . . "preview.jpg"^^ . . . "A Combined Functional Renormalization and Mean-Field Study of Competing Orders in the Two-Dimensional Hubbard Model (Other)"^^ . . . . . . "medium.jpg"^^ . . . "A Combined Functional Renormalization and Mean-Field Study of Competing Orders in the Two-Dimensional Hubbard Model (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #22476 \n\nA Combined Functional Renormalization and Mean-Field Study of Competing Orders in the Two-Dimensional Hubbard Model\n\n" . "text/html" . . . "500 Naturwissenschaften und Mathematik"@de . "500 Natural sciences and mathematics"@en . . . "530 Physik"@de . "530 Physics"@en . .