5 papers
Quantum Gravity from Fundamental Questions to Phenomenological Applications
Natalia Alkofer
Investigating quantum gravity requires a comprehension of both, general relativity and quantum field theory. Therefore this thesis starts, after a general introduction to the treat…
Renormalisation Group for Gravity and Dimensional Reduction
Natalia Alkofer
The functional renormalisation group for the Einstein-Hilbert action is investigated for the case of four infinite (or large) and one compact dimension. The motivation for this stu…
Asymptotically Safe -Gravity Coupled to Matter II: Global Solutions
Natalia Alkofer
Ultraviolet fixed point functions of the functional renormalisation group equation for -gravity coupled to matter fields are discussed. The metric is split via the exponentia…
Asymptotically safe f(R)-gravity coupled to matter I: the polynomial case
Natalia Alkofer, Frank Saueressig
We use the functional renormalization group equation for the effective average action to study the non-Gaussian renormalization group fixed points (NGFPs) arising within the framew…
The non-perturbative BRST quartet mechanism in Landau gauge QCD: Ghost-gluon and ghost-quark bound states
Natalia Alkofer, Reinhard Alkofer
The non-perturbative BRST quartet mechanism in infrared Landau gauge QCD is presented. It is demonstrated that positivity violation for transverse gluons allows to identify the glu…