4 citations · 10 across the 7 of their papers we have counts for
8 papers
Asymptotically safe quantum gravity and its phenomenology -- a review
Astrid Eichhorn
Asymptotically safe quantum gravity is an approach to quantum gravity. It is based on the premise that quantum field theory can describe the quantum nature of gravity in our univer…
Non-uniqueness of boundary-value problems in Renormalization Group flows
Astrid Eichhorn, Zois Gyftopoulos, Aaron Held
The Renormalization Group flow connects microscopic to macroscopic descriptions of a system and is therefore typically considered as an initial-value problem. Motivated by situatio…
Renormalization group flows in area-metric gravity
Johanna Borissova, Bianca Dittrich, Astrid Eichhorn +1
We put forward the first analysis of renormalization group flows in an area-metric theory, motivated by spin-foam quantum gravity. Area-metric gravity contains the well-known lengt…
Indications against dynamical CPT symmetry restoration in quantum gravity
Astrid Eichhorn, Marc Schiffer
CPT symmetry is at the heart of the Standard Model of particle physics and experimentally very well tested, but expected to be broken in some approaches to quantum gravity. It thus…
Neutrino mass generation in asymptotically safe gravity
Gustavo P. de Brito, Astrid Eichhorn, Antonio D. Pereira +1
There exist several distinct phenomenological models to generate neutrino masses. We explore, which of these models can consistently be embedded in a quantum theory of gravity and…
Application of positivity bounds in asymptotically safe gravity
Astrid Eichhorn, Andreas Odgaard Pedersen, Marc Schiffer
Positivity bounds are bounds on the Wilson coefficients of an effective field theory. They hold, if the ultraviolet completion satisfies unitarity, microcausality, locality and Lor…
Ruling out models of vector dark matter in asymptotically safe quantum gravity
Gustavo P. de Brito, Astrid Eichhorn, Mads T. Frandsen +3
The nature of dark matter is a problem with too many potential solutions. We investigate whether a consistent embedding into quantum gravity can decimate the number of solutions to…
Light fermions in color: why the quark mass is not the Planck mass
Gustavo P. de Brito, Astrid Eichhorn, Shouryya Ray
We investigate whether quantum gravity fluctuations can break chiral symmetry for fermions that are charged under a and an gauge symmetry and thus closely r…