73 citations · 355 across the 21 of their papers we have counts for
9 papers · 1 filter
Shift-symmetric Horndeski gravity in the asymptotic-safety paradigm
Astrid Eichhorn, Rafael R. Lino dos Santos, Fabian Wagner
Horndeski gravity is a popular contender for a phenomenological model of dynamical dark energy, and as such subject to observational constraints. In this work, we ask whether Hornd…
An algorithmic approach to finding canonical differential equations for elliptic Feynman integrals
Christoph Dlapa, Johannes M. Henn, Fabian J. Wagner
In recent years, differential equations have become the method of choice to compute multi-loop Feynman integrals. Whenever they can be cast into canonical form, their solution in t…
Modified uncertainty relations from classical and quantum gravity
Fabian Wagner
A good hundred years after the necessity for a quantum theory of gravity was acknowledged by Albert Einstein, the search for it continues to be an ongoing endeavour. Nevertheless,…
Momentum gauge fields from curved momentum space through Kaluza-Klein reduction
Eduardo Guendelman, Fabian Wagner
In this work we investigate the relation between curved momentum space and momentum-dependent gauge fields. While the former is a classic idea that has been shown to be tied to min…
Curved momentum space equivalent to the linear and quadratic Generalized Uncertainty Principle
Fabian Wagner
In this work, we deepen the correspondence between Generalized Uncertainty Principles (GUPs) and quantum dynamics on curved momentum space. In particular, we investigate the linear…
Spin operator, Bell nonlocality and Tsirelson bound in quantum-gravity induced minimal-length quantum mechanics
Pasquale Bosso, Luciano Petruzziello, Fabian Wagner +1
Different approaches to quantum gravity converge in predicting the existence of a minimal scale of length. This raises the fundamental question as to whether and how an intrinsic l…
The minimal length is physical
Pasquale Bosso, Luciano Petruzziello, Fabian Wagner
In this paper, we clarify a foundational loose end affecting the phenomenological approach to quantum gravity centered around the generalization of Heisenberg uncertainty principle…
Reinterpreting deformed Heisenberg algebras
Fabian Wagner
Minimal and maximal uncertainties of position measurements are widely considered possible hallmarks of low-energy quantum as well as classical gravity. While General Relativity des…
A New Guest in the Third Quantized Multiverse
Samuel Barroso Bellido, Fabian Wagner
In the present article we point out a conceptual issue of the Third Quantization formalism for Canonical Quantum Gravity. Based on earlier results on interuniversal entanglement, t…