<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Non-Perturbative Aspects of Quantum\r\nField Theory:\r\nFrom the Quark-Gluon Plasma to\r\nQuantum Gravity"^^ . "In this dissertation we investigate several aspects of non-perturbative quantum field theory.\r\nTwo main parts of the thesis are concerned with non-perturbative renormalization\r\nof quantum gravity within the asymptotic safety scenario. This framework is based on a\r\nnon-Gaussian ultraviolet fixed point and provides a well-defined theory of quantized gravity.\r\nWe employ functional renormalization group (FRG) techniques that allow for the study of\r\nquantum fields even in strongly coupled regimes. We construct a setup for the computation\r\nof graviton correlation functions and analyze the ultraviolet completion of quantum gravity\r\nin terms of the properties of the two- and three point function of the graviton. Moreover, the\r\ncoupling of gravity to Yang–Mills theories is discussed. In particular, we study the effects\r\nof graviton induced interactions on asymptotic freedom on the one hand, and the role of\r\ngluonic fluctuations in the gravity sector on the other hand.\r\nThe last subject of this thesis is the physics of the quark-gluon plasma. We set-up a general\r\nnon-perturbative strategy for the computation of transport coefficients in non-Abelian gauge\r\ntheories. We determine the viscosity over entropy ratio in SU(3) Yang–Mills theory as a\r\nfunction of temperature and estimate its behavior in full quantum chromodynamics (QCD)."^^ . "2015" . . . . . . . "Nicolai"^^ . "Christiansen"^^ . "Nicolai Christiansen"^^ . . . . . . "Non-Perturbative Aspects of Quantum\r\nField Theory:\r\nFrom the Quark-Gluon Plasma to\r\nQuantum Gravity (PDF)"^^ . . . "Dissertation_Christiansen.pdf"^^ . . . "Non-Perturbative Aspects of Quantum\r\nField Theory:\r\nFrom the Quark-Gluon Plasma to\r\nQuantum Gravity (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Non-Perturbative Aspects of Quantum\r\nField Theory:\r\nFrom the Quark-Gluon Plasma to\r\nQuantum Gravity (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Non-Perturbative Aspects of Quantum\r\nField Theory:\r\nFrom the Quark-Gluon Plasma to\r\nQuantum Gravity (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Non-Perturbative Aspects of Quantum\r\nField Theory:\r\nFrom the Quark-Gluon Plasma to\r\nQuantum Gravity (Other)"^^ . . . . . . "small.jpg"^^ . . . "Non-Perturbative Aspects of Quantum\r\nField Theory:\r\nFrom the Quark-Gluon Plasma to\r\nQuantum Gravity (Other)"^^ . . . . . . "indexcodes.txt"^^ . . "HTML Summary of #19254 \n\nNon-Perturbative Aspects of Quantum \nField Theory: \nFrom the Quark-Gluon Plasma to \nQuantum Gravity\n\n" . "text/html" . . . "500 Naturwissenschaften und Mathematik"@de . "500 Natural sciences and mathematics"@en . . . "530 Physik"@de . "530 Physics"@en . .