51 citations · 347 across the 26 of their papers we have counts for
5 papers · 1 filter
Towards a bound on the Higgs mass in causal set quantum gravity
Gustavo P. de Brito, Astrid Eichhorn, Ludivine Fausten
In the Standard Model of particle physics, the mass of the Higgs particle can be linked to the scale at which the Standard Model breaks down due to a Landau pole/triviality problem…
Higher-order curvature operators in causal set quantum gravity
Gustavo. P. de Brito, Astrid Eichhorn, Christopher Pfeiffer
We construct higher-order curvature invariants in causal set quantum gravity. The motivation for this work is twofold: first, to characterize causal sets, discrete operators that e…
Are there ALPs in the asymptotically safe landscape?
Gustavo P. de Brito, Astrid Eichhorn, Rafael R. Lino dos Santos
We investigate axion-like particles (ALPs) in the context of asymptotically safe gravity-matter systems. The ALP-photon interaction, which facilitates experimental searches for ALP…
The weak-gravity bound and the need for spin in asymptotically safe matter-gravity models
Gustavo P. de Brito, Astrid Eichhorn, Rafael Robson Lino dos Santos
We discover a weak-gravity bound in scalar-gravity systems in the asymptotic-safety paradigm. The weak-gravity bound arises in these systems under the approximations we make, when…
Can quantum fluctuations differentiate between standard and unimodular gravity?
Gustavo P. de Brito, Oleg Melichev, Roberto Percacci +1
We formally prove the existence of a quantization procedure that makes the path integral of a general diffeomorphism-invariant theory of gravity, with fixed total spacetime volume,…