17 citations · 78 across the 9 of their papers we have counts for
9 papers
Gravitational Waves Emission in Quadratic Gravity: longitudinal modes, angular momentum emission, and positivity of the radiated power
Matheus F. S. Alves, R. R. Cuzinatto, C. A. M. de Melo +2
In this paper, the emission of gravitational waves in quadratic gravity theory is examined. The wave equations for massless and massive perturbations are derived, followed by the c…
Aharonov-Bohm Effect in Generalized Electrodynamics
C. A. M. de Melo, B. M. Perez, J. C. Sumire Esquia +1
The Aharonov-Bohm (AB) effect is considered in the context of Generalized Electrodynamics (GE) by Podolsky and Bopp. GE is the only extension to Maxwell electrodynamics that is loc…
Shadows of black holes at cosmological distances in the co-varying physical couplings framework
R. R. Cuzinatto, C. A. M. de Melo, Juliano C. S. Neves
The co-varying physical couplings (CPC) framework states that physical parameters like the speed of light in vacuum , the Newtonian constant , and the cosmological constant $…
Non-commutativity and non-inertial effects on a scalar field in a cosmic string space-time. Part 1: Klein-Gordon oscillator
R. R. Cuzinatto, M. de Montigny, P. J. Pompeia
We analyse the Klein-Gordon oscillator in a cosmic string space-time and study the effects stemming from the rotating frame and non-commutativity in momentum space. We show that th…
Testing a varying- model for dark energy within Co-varying Physical Couplings framework
R. R. Cuzinatto, R. P. Gupta, R. F. L. Holanda +2
The Co-varying Physical Couplings (CPC) framework is a modified gravity set up assuming Einstein Field Equations wherein the quantities are promoted to space-time funct…
Observational constraints on varying fundamental constants in a minimal CPC model
R. R. Cuzinatto, R. F. L. Holanda, S. H. Pereira
A minimal model based on the Co-varying Physical Couplings (CPC) framework for gravity is proposed. The CPC framework is based on the assumptions of a metric-compatible four-dimens…
LyST: a Scalar-Tensor Theory of Gravity on Lyra Manifold
R. R. Cuzinatto, E. M. de Morais, B. M. Pimentel
We present a scalar-tensor theory of gravity on a torsion-free and metric compatible Lyra manifold. This is obtained by generalizing the concept of physical reference frame by cons…
Analytic Study of Cosmological Perturbations in a Unified Model of Dark Matter and Dark Energy with a Sharp Transition
Rodrigo R. Cuzinatto, Léo G. Medeiros, Eduardo M. de Morais +1
We study cosmological perturbations in a model of unified dark matter and dark energy with a sharp transition in the late-time universe. The dark sector is described by a dark flui…
Observational constraints to a unified cosmological model
R. R. Cuzinatto, L. G. Medeiros, E. M. de Morais
We propose a phenomenological unified model for dark matter and dark energy based on an equation of state parameter that scales with the of the redshift. The free par…