28 citations · 32 across the 4 of their papers we have counts for
5 papers
Thermal dynamics in a four-fermion model: mean-field and functional renormalization group analyses
Arthur F. Vieira, Rudnei O. Ramos
We investigate a one-flavor four-fermion model with scalar, pseudoscalar, and mixed scalar-pseudoscalar interactions at finite temperature and vanishing chemical potential. Our ana…
Towards Perturbative Unimodular Poincaré Gauge Theories with Propagating Torsion
Arthur F. Vieira, Antonio D. Pereira, Reinhard Alkofer
We study the one-loop relation between an effective-field-theory extension of Poincaré gauge theories of gravity with propagating torsion and its unimodular counterpart. In the Ein…
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…
Fate of chiral symmetry in Riemann-Cartan geometry
Gustavo P. de Brito, Antonio D. Pereira, Arthur F. Vieira
We study the mechanism of chiral symmetry breaking for fermionic systems in a gravitational background with curvature and torsion. The analysis is based on a scale-dependent effect…
Exploring new corners of asymptotically safe unimodular quantum gravity
Gustavo P. de Brito, Antonio D. Pereira, Arthur F. Vieira
The renormalization group flow of unimodular quantum gravity is investigated within two different classes of truncations of the flowing effective action. In particular, we search f…