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Related papers: Maxwell electrodynamics modified by a CPT-odd dime…

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We discuss the modified Maxwell action of a $K_{F}$-type Lorentz symmetry breaking theory and present a solution of Maxwell equations derived in the cases of linear and elliptically polarized electromagnetic waves in the vacuum of CPT-even…

General Physics · Physics 2017-05-30 Thiago Prudencio , Humberto Belich

Lorentz violation emerged from a fundamental description of nature may impact, at low energies, the Maxwell sector, so that contributions from such new physics to the electromagnetic vertex would be induced. Particularly, nonbirefringent…

High Energy Physics - Phenomenology · Physics 2014-09-03 A. Moyotl , H. Novales-Sánchez , J. J. Toscano , E. S. Tututi

In the present work, we investigate classical solutions of the Maxwell-Carroll-Field-Jackiw-Proca (MCFJP) electrodynamics for the cases a purely timelike and spacelike Lorentz-violating (LV) background. Starting from the MCFJP Lagrangian…

High Energy Physics - Theory · Physics 2008-11-26 Rodolfo Casana , Manoel M. Ferreira , Carlos E. H. Santos

The influence of Lorentz- and CPT-violating terms of the extended Standard Model on a semi-classical two-level system is analyzed. It is shown that the Lorentz-violating background (when coupled with the fermion sector in a vector way) is…

High Energy Physics - Theory · Physics 2008-11-26 Manoel M. Ferreira , Adalto R. Gomes , Rafael C. C. Lopes

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 corrections are obtained, at one-loop order, through the…

High Energy Physics - Theory · Physics 2016-03-22 L. H. C. Borges , A. G. Dias , A. F. Ferrari , J. R. Nascimento , A. Yu. Petrov

There is a unique Lorentz-violating modification of the Maxwell theory of photons, which maintains gauge invariance, CPT, and renormalizability. Restricting the modified-Maxwell theory to the isotropic sector and adding a standard…

High Energy Physics - Phenomenology · Physics 2010-04-21 F. R. Klinkhamer , M. Schreck

In this study, we consider the four-dimensional Maxwell electrodynamics extended with CPT-even Myers-Pospelov Lorentz-violating dimension-six operators to investigate the associated two-dimensional properties in the context of quantum…

High Energy Physics - Theory · Physics 2024-04-18 K. E. L. de Farias , M. A. Anacleto , F. A. Brito , E. Passos , Herondy Mota

In this work, we study the propagation and absorption of plasma waves in the context of the Maxwell-Carroll-Field-Jackiw (MCFJ) electrodynamics with a purely spacelike background playing the role of the anomalous Hall conductivity,…

Plasma Physics · Physics 2024-07-18 Filipe S. Ribeiro , Pedro D. S. Silva , Manoel M. Ferreira

Taking as starting point a Lorentz and CPT non-invariant Chern-Simons-like model defined in 1+3 dimensions, we proceed realizing its dimensional reduction to D=1+2. One then obtains a new planar model, composed by the Maxwell-Chern-Simons…

High Energy Physics - Theory · Physics 2014-11-18 H. Belich , M. M. Ferreira , J. A. Helayel-Neto , M. T. D. Orlando

Assuming Lorentz symmetry is broken by some fixed vector background, we study the spinor electrodynamics modified by two dimension-five Lorentz-violating interactions between fermions and photons. The effective polarization and…

High Energy Physics - Theory · Physics 2015-06-15 Shan-quan Lan , Feng Wu

CPT-odd effects on the neutrino charge radius are studied within the Standard Model Extension. We consider CPT violation from the electroweak Yang-Mills sector, characterized by Lorentz-violating coefficients $(k_1)_\mu$ and $(k_2)_\mu$,…

High Energy Physics - Phenomenology · Physics 2025-08-21 Y. Flores-Orea , J. J. Toscano

The CPT-even gauge sector of the Standard Model Extension is composed of nineteen components comprised in the tensor $(K_{F})_{\mu \nu\rho\sigma}$, of \ which nine do not yield birefringence. In this work, we examine the Maxwell…

High Energy Physics - Theory · Physics 2010-12-24 Rodolfo Casana , Manoel M. Ferreira , Adalto R. Gomes , Frederico E. P. dos Santos

We have studied BPS vortices in a CPT-odd and Lorentz-violating Maxwell-Chern-Simons-Higgs (MCSH) electrodynamics attained from the dimensional reduction of the Carroll-Field-Jackiw-Higgs model. The Lorentz-violating parameter induces a…

High Energy Physics - Theory · Physics 2015-06-19 R. Casana , M. M. Ferreira , E. da Hora , A. B. F. Neves

In the presence of an external magnetic field, the Carroll-Field-Jackiw term introduces a displacement current proportional to the Lorentz-violating background that induces a time-dependent magnetic field. Axion-like particles or hidden…

High Energy Physics - Phenomenology · Physics 2020-03-18 P. C. Malta

This work examines the finite temperature properties of the CPT-even and parity-odd electrodynamics of the standard model extension. We start from the partition function written into the functional integral formalism in Ref. \cite{Finite}.…

High Energy Physics - Theory · Physics 2010-05-25 Rodolfo Casana , Manoel M. Ferreira , Madson R. O. Silva

Focusing on gauge degrees of freedom specified by a 1+3 dimensions model hosting a Maxwell term plus a Lorentz and CPT non-invariant Chern-Simons-like contribution, we obtain a minimal extension of such a system to a supersymmetric…

High Energy Physics - Theory · Physics 2009-11-10 H. Belich , J. L. Boldo , L. P. Colatto , J. A. Helayel-Neto , A. L. M. A. Nogueira

This work sets out to compute the corrections to the Euler-Heisenberg effective action that arise from spacetime-dependent background anisotropies that violate Lorentz symmetry. To accomplish our task, we evaluate the functional determinant…

High Energy Physics - Theory · Physics 2026-03-24 Wagno Cesar e Silva , João Paulo S. Melo , José A. Helayël-Neto

All quantum gravity approaches lead to small modifications in the standard laws of physics which lead to violations of Lorentz invariance. One particular example is the extended standard model (SME). Here, a general phenomenological…

General Relativity and Quantum Cosmology · Physics 2011-07-19 Claus Laemmerzahl , Alfredo Macias , Holger Mueller

In this paper, we describe the quantum electrodynamics added by Lorentz-violating CPT-even terms in the context of the standard model extension. We focus our attention on the fermion sector, represented by the CPT-even symmetric…

High Energy Physics - Theory · Physics 2018-01-23 T. Mariz , R. V. Maluf , J. R. Nascimento , A. Yu. Petrov

We extend the Einstein-Maxwell-axion theory including into the Lagrangian cross-terms of the dynamo-optical type, which are quadratic in the Maxwell tensor, linear in the covariant derivative of the macroscopic velocity four-vector, and…

General Relativity and Quantum Cosmology · Physics 2015-06-19 Alexander B. Balakin , Timur Yu. Alpin