70 citations · 562 across the 26 of their papers we have counts for
28 papers
Beyond gauge-parameter dependence: Further evidence for asymptotic safety in Scalar-Tensor theories
Samuel M. P. Antunes, Antonio D. Pereira
Asymptotic Safety provides a promising framework for the quantization of Scalar-Tensor theories as non-perturbatively renormalizable quantum field theories. Over the past years, gr…
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…
Quantum Gravity, Hydrodynamics and Emergent Cosmology: A Collection of Perspectives
Jibril Ben Achour, Dario Benedetti, Martin Bojowald +17
This collection of perspective pieces captures recent advancements and reflections from a dynamic research community dedicated to bridging quantum gravity, hydrodynamics, and emerg…
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…
Frontiers of Quantum Gravity: shared challenges, converging directions
Jan de Boer, Bianca Dittrich, Astrid Eichhorn +10
Understanding the quantum nature of spacetime and gravity remains one of the most ambitious goals of theoretical physics. It promises to provide key new insights into fundamental p…
Evidence for a novel shift-symmetric universality class from the functional renormalization group
Cristobal Laporte, Nora Locht, Antonio D. Pereira +1
Wetterich's equation provides a powerful tool for investigating the existence and universal properties of renormalization group fixed points exhibiting quantum scale invariance. Mo…
Towards background field independence within the Gribov horizon
Igor F. Justo, Antonio D. Pereira, Rodrigo F. Sobreiro
We introduce a background gauge akin to the Landau-DeWitt gauge but deformed by the presence of a gauge parameter for the quantization of Euclidean Yang-Mills theories. In the limi…
Scalar-Tensor theories within Asymptotic Safety
Cristobal Laporte, Antonio D. Pereira, Frank Saueressig +1
Asymptotic Safety provides an elegant mechanism for obtaining a consistent high-energy completion of gravity and gravity-matter systems. Following the initial idea by Steven Weinbe…
Infrared propagators of Yang-Mills-Chern-Simons theories in linear covariant gauges
Luigi C. Ferreira, Diego R. Granado, Igor F. Justo +1
Recent works have explored non-perturbative effects due to the existence of (infinitesimal) Gribov copies in Yang-Mills-Chern-Simons theories in three Euclidean dimensions. In part…
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,…
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…
The phase diagram of the multi-matrix model with ABAB-interaction from functional renormalization
Astrid Eichhorn, Antonio D. Pereira, Andreas G. A. Pithis
At criticality, discrete quantum-gravity models are expected to give rise to continuum spacetime. Recent progress has established the functional renormalization group method in the…
Unimodular quantum gravity: Steps beyond perturbation theory
Gustavo P. de Brito, Antonio D. Pereira
The renormalization group flow of unimodular quantum gravity is computed by taking into account the graviton and Faddeev-Popov ghosts anomalous dimensions. In this setting, a ultra…
Hints of (de)confinement in Yang-Mills-Chern-Simons theories in the maximal Abelian gauge
Luigi C. Ferreira, Antonio D. Pereira, Rodrigo F. Sobreiro
The study of Yang-Mills theories in three dimensions is an insightful playground to grasp important features for the four-dimensional case. Additionally, in three dimensions, the C…
Universal critical behavior in tensor models for four-dimensional quantum gravity
Astrid Eichhorn, Johannes Lumma, Antonio D. Pereira +1
Four-dimensional random geometries can be generated by statistical models with rank-4 tensors as random variables. These are dual to discrete building blocks of random geometries.…
Renormalization group flow of coupled tensorial group field theories: Towards the Ising model on random lattices
Vincent Lahoche, Dine Ousmane Samary, Antonio D. Pereira
We introduce a new family of tensorial field theories by coupling different fields in a non-trivial way, with a view towards the investigation of the coupling between matter and gr…
A link that matters: Towards phenomenological tests of unimodular asymptotic safety
Gustavo P. de Brito, Astrid Eichhorn, Antonio D. Pereira
Constraining quantum gravity from observations is a challenge. We expand on the idea that the interplay of quantum gravity with matter could be key to meeting this challenge. Thus,…
On the impact of Majorana masses in gravity-matter systems
Gustavo P. de Brito, Yuta Hamada, Antonio D. Pereira +1
We investigate the Higgs-Yukawa system with Majorana masses of a fermion within asymptotically safe quantum gravity. Using the functional renormalization group method we derive the…
Quantum spacetime and the renormalization group: Progress and visions
Antonio D. Pereira
The quest for a consistent theory which describes the quantum microstructure of spacetime seems to require some departure from the paradigms that have been followed in the construc…
Status of background-independent coarse-graining in tensor models for quantum gravity
Astrid Eichhorn, Tim Koslowski, Antonio D. Pereira
A background-independent route towards a universal continuum limit in discrete models of quantum gravity proceeds through a background-independent form of coarse graining. This rev…
Towards background independent quantum gravity with tensor models
Astrid Eichhorn, Tim Koslowski, Johannes Lumma +1
We explore whether the phase diagram of tensor models could feature a pregeometric, discrete and a geometric, continuum phase for the building blocks of space. The latter are assoc…
Asymptotic safety and field parametrization dependence in the f(R) truncation
Gustavo P. de Brito, Nobuyoshi Ohta, Antonio D. Pereira +2
We study the dependence on field parametrization of the functional renormalization group equation in the truncation for the effective average action. We perform a systematic…
at one loop
N. Ohta, R. Percacci, A. D. Pereira
We compute the one-loop divergences in a theory of gravity with Lagrangian of the general form , on an Einstein background. We also establish that the one-loop e…
Functional Renormalization Group analysis of rank 3 tensorial group field theory: The full quartic invariant truncation
Joseph Ben Geloun, Tim A. Koslowski, Daniele Oriti +1
In this paper we consider the complete momentum-independent quartic order truncation for the effective average action of a real Abelian rank 3 tensorial group field theory. This co…