title: Physics on all Scales : Scalar-Tensor Theories of Quantum Gravity in Particle Physics and Cosmology
creator: Henz, Tobias
subject: ddc-530
subject: 530 Physics
description: In this thesis, we investigate dilaton quantum gravity using a functional renormalization group approach. We derive and discuss flow equations both in the background field approximation and using a vertex expansion as well as solve the fixed point equations globally to show how realistic gravity, connecting ultraviolet and infrared physics, can be realized on a pure fixed point trajectory by virtue of spontaneous breaking of scale invariance.    The emerging physical system features a dynamically generated moving Planck scale resembling the Newton coupling as well as slow roll inflation with an exponentially decreasing effective cosmological constant that vanishes completely in the infrared. The moving Planck scale might make quantum gravity experimentally accessible at a different energy scale than previously believed.  We therefore not only provide further evidence for the existence of a consistent quantum theory of gravity based on general relativity, but also offer potential solutions towards the hierarchy and cosmological constant problems, thereby opening up exciting opportunities for further research.
date: 2016
type: Dissertation
type: info:eu-repo/semantics/doctoralThesis
type: NonPeerReviewed
format: application/pdf
identifier: https://archiv.ub.uni-heidelberg.de/volltextserverhttps://archiv.ub.uni-heidelberg.de/volltextserver/20696/1/Doktorarbeit_TH.pdf
identifier: DOI:10.11588/heidok.00020696
identifier: urn:nbn:de:bsz:16-heidok-206962
identifier:   Henz, Tobias  (2016) Physics on all Scales : Scalar-Tensor Theories of Quantum Gravity in Particle Physics and Cosmology.  [Dissertation]     
relation: https://archiv.ub.uni-heidelberg.de/volltextserver/20696/
rights: info:eu-repo/semantics/openAccess
rights: http://archiv.ub.uni-heidelberg.de/volltextserver/help/license_urhg.html
language: eng