54 citations · 187 across the 23 of their papers we have counts for
8 papers · 1 filter
Nonrelativistic effective potential of the bumblebee model
C. Furtado, J. R. Nascimento, A. Yu. Petrov +1
In this paper, we explicitly obtain the nonrelativistic Breit potential in the bumblebee model arising in the weak gravity limit of the metric-affine bumblebee gravity, coupled to…
Four-dimensional supersymmetric massive QED
A. C. Lehum, J. R. Nascimento, A. Yu. Petrov
We study a four-dimensional supersymmetric Proca model with an explicit mass term for a real vector superfield and a generalized transverse kinetic operator. Althoug…
Shadow structure of generalized black-bounce metrics
Jose R. Nascimento, Ana R. M. Oliveira, Albert Yu. Petrov +2
The existence of black hole shadows is one of the most interesting effects of the strong field regime of general relativity (GR). Recent observations by the Event Horizon Telescope…
One-loop Euler-Heisenberg action in Lorentz-violating QED revisited
R. Araújo, T. Mariz, J. R. Nascimento +1
We discuss applications of the proper-time method in a Lorentz-violating extension of QED characterized by the addition of the term proportional to the antisymmetric tensor $H_{μν}…
Mixed gauge-gravity term and proper time
J. R. Nascimento, M. Paganelly, A. Yu. Petrov +1
We consider the four-dimensional action of spinors minimally coupled to a -gauge field in an Riemann-Cartan background. In this theory, we integrate over the spinors and stud…
A novel nonlocal spin-1/2 theory: classical and quantum aspects
J. R. Nascimento, Gonzalo J. Olmo, A. Yu. Petrov +2
We propose a novel nonlocal spin-1/2 theory in which the form factor depends on the Dirac operator rather than on the d'Alembert operator. In this scenario, we explore some classic…
Gravitational lensing by generalized black-bounce space-times
C. Furtado, A. L. A. Moreira, J. R. Nascimento +2
We study gravitational lensing by generalized black-bounce space-times both in regimes of weak and strong field approximations. These metrics interpolate between regular blac…
Perturbative aspects of the supersymmetric three-dimensional massive QED
A. C. Lehum, J. R. Nascimento, A. C. Pina Neto +1
We perform the study of perturbative aspects of a three-dimensional supersymmetric Maxwell-Chern-Simons-Proca theory minimally coupled to scalar superfields. Using the superfield f…