30 citations · 198 across the 22 of their papers we have counts for
22 papers
Field sources in a planar anisotropic CPT-odd gauge model
L. H. C. Borges, A. F. Ferrari, P. H. O. da Silva +1
In the present paper we study some new classical Lorentz violating effects in planar electrodynamics due to the presence of stationary point-like field sources. Starting from the C…
Lorentz Violating Electrodynamics with sources and mirrors
A. F. Ferrari
We look for modifications that can be derived from the Maxwell sector of the SME for the interaction between electrical charges and the electromagnetic field. The kind of problem t…
Semi-transparent boundaries in CPT-even Lorentz violating electrodynamics
L. H. C. Borges, A. F. Ferrari
Some aspects of the nonbirefringent CPT-even gauge sector of the Standard Model Extension (SME), in the vicinity of a semi-transparent mirror, are investigated in this paper. We fi…
External sources in a minimal and nonminimal CPT-odd Lorentz violating Maxwell electrodynamics
L. H. C. Borges, A. F. Ferrari
This paper is devoted to the study of interactions between stationary electromagnetic sources for the minimal and nonminimal CPT-odd photon sector of the Standard Model Extension (…
Effective potential and dynamical symmetry breaking up to five loops in a massless abelian Higgs model
A. G. Quinto, R. Vega Monroy, A. F. Ferrari +1
In this paper, we investigate the application of the Renormalization Group Equation (RGE) in the determination of the effective potential and the study of Dynamical Symmetry Breaki…
One-loop calculations in Lorentz-breaking theories and proper-time method
A. F. Ferrari, J. Furtado, J. F. Assunção +2
We discuss applications of the proper-time method in various minimal Lorentz violating modifications of QED and present new results obtained with its use. Explicitly. we calculate…
Renormalization group improvement of the effective potential in a (1+1) dimensional Gross-Neveu model
A. G. Quinto, R. Vega Monroy, A. F. Ferrari
In this work, we investigate the consequences of the Renormalization Group Equation (RGE) in the determination of the effective potential and the study of Dynamical Symmetry Breaki…
The point-charge self-energy in a nonminimal Lorentz violating Maxwell Electrodynamics
L. H. C. Borges, F. A. Barone, A. F. Ferrari
In this letter we study the self-energy of a point-like charge for the electromagnetic field in a non minimal Lorentz symmetry breaking scenario in a dimensional space time.…
Lorentz Violation and Radiative Corrections in Gauge Theories
A. F. Ferrari
Various studies have already considered radiative corrections in Lorentz-violating models unveiling many instances where a minimal or nonminimal operator generates, via loop correc…
Reduction of order and Fadeev-Jackiw formalism in generalized electrodynamics
A. A. Nogueira, C. Palechor, A. F. Ferrari
The aim of this work is to discuss some aspects of the reduction of order formalism in the context of the Fadeev-Jackiw symplectic formalism, both at the classical and the quantum…
Perturbative generation of photon Lorentz violating terms from a pseudo-tensor Lorentz-breaking extension of QED
A. J. G. Carvalho, A. F. Ferrari, A. M. de Lima +2
We consider an extended QED with the addition of a dimension-five Lorentz-breaking coupling between spinor and gauge fields, involving a pseudo-tensor . The specific form…
Twisted Supersymmetry in a Deformed Wess-Zumino Model in (2+1) Dimensions
C. Palechor, A. F. Ferrari, A. G. Quinto
Non-anticommutative deformations have been studied in the context of supersymmetry (SUSY) in three and four space-time dimensions, and the general picture is that highly nontrivial…
Nonminimal Lorentz-Violating Effects in Photon Physics
Alysson Fabio Ferrari
We study an extension of QED involving a light pseudoscalar (an axion-like particle), together with a very massive fermion which has Lorentz-violating interactions with the photon…
The role of singular spinor fields in a torsional gravity, Lorentz-violating, framework
A. F. Ferrari, J. A. S. Neto, R. da Rocha
In this work, we consider a generalization of quantum electrodynamics including Lorentz violation and torsional-gravity, in the context of general spinor fields as classified in th…
Nielsen Identity and the Renormalization Group Functions in an Abelian Supersymmetric Chern-Simons Model in the Superfield Formalism
A. G. Quinto, A. F. Ferrari
In this paper we study the Nielsen identity for the supersymmetric Chern-Simons-matter model in the superfield formalism, in three spacetime dimensions. The Nielsen identity is ess…
New effects in the interaction between electromagnetic sources mediated by nonminimal Lorentz violating interactions
L. H. C. Borges, A. F. Ferrari, F. A. Barone
This paper is dedicated to the study of interactions between external sources for the electromagnetic field in a Lorentz symmetry breaking scenario. We focus on a particular higher…
Generation of higher derivatives operators and electromagnetic wave propagation in a Lorentz-violation scenario
L. H. C. Borges, A. G. Dias, A. F. Ferrari +2
We study the perturbative generation of higher-derivative operators as corrections to the photon effective action, which are originated from a Lorentz violation background. Such co…
A relation between deformed superspace and Lee-Wick higher-derivative theories
M. Dias, A. F. Ferrari, C. A. Palechor +1
We propose a type of non-anticommutative superspace, with the interesting property of relating to Lee-Wick type of higher derivatives theories, which are known for their interestin…
Non-perturbative fixed points and renormalization group improved effective potential
A. G. Dias, A. F. Ferrari, J. D. Gomez +2
The stability conditions of a renormalization group improved effective potential have been discussed in the case of scalar QED and QCD with a colorless scalar. We calculate the sam…
Renormalization Group Improvement and Dynamical Breaking of Symmetry in a Supersymmetric Chern-Simons-matter Model
A. G. Quinto, A. F. Ferrari, A. C. Lehum
In this work, we investigate the consequences of the Renormalization Group Equation (RGE) in the determination of the effective superpotential and the study of Dynamical Symmetry B…
Dynamics of a Dirac Fermion in the presence of spin noncommutativity
A. F. Ferrari, M. Gomes, V. G. Kupriyanov +1
Recently, it has been proposed a spacetime noncommutativity that involves spin degrees of freedom, here called "spin noncommutativity". One of the motivations for such a constructi…
Renormalization Group and Conformal Symmetry Breaking in the Chern-Simons Theory Coupled to Matter
A. G. Dias, A. F. Ferrari
The three-dimensional Abelian Chern-Simons theory coupled to a scalar and a fermionic field of arbitrary charge is considered in order to study conformal symmetry breakdown and the…