Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Ospedal, L. P. R."'
Publikováno v:
Journal of High Energy Physics (JHEP) 29, vol. 2024 (2024)
We pursue the investigation of a generic non-linear extension of axionic electrodynamics in a Carroll-Field-Jackiw (CFJ) scenario that implements Lorentz-symmetry violation (LSV). The model we inspect consists of an arbitrary non-linear electrodynami
Externí odkaz:
http://arxiv.org/abs/2303.10162
Publikováno v:
J. Phys. A: Math. Theor. 56, 415701 (2023)
We propose and study the properties of a non-linear electrodynamics that emerges inspired on the physics of Dirac materials. This new electrodynamic model is an extension of the one-loop corrected non-linear effective Lagrangian computed in the work
Externí odkaz:
http://arxiv.org/abs/2303.03098
The work aims effective and low-dimensional systems. Some different contexts involving gravitational and electromagnetic interactions are investigated. The electromagnetic one approaches bosonic and fermionic Effective Quantum Field Theories non-mini
Externí odkaz:
http://arxiv.org/abs/2210.01236
Publikováno v:
Phys. Rev. D 107, 075019 (2023)
The properties of the modified Maxwell electrodynamics (ModMax) are investigated in presence of external and uniform electric and magnetic fields. We expand the non-linear theory around an electromagnetic background up to second order in the propagat
Externí odkaz:
http://arxiv.org/abs/2209.09361
Publikováno v:
Journal of High Energy Physics (JHEP) 10 (2022) 160
In this contribution, we re-assess some aspects of axionic electrodynamics by coupling non-linear electromagnetic effects to axion physics. We present a number of motivations to justify the coupling of the axion to the photon in terms of a general no
Externí odkaz:
http://arxiv.org/abs/2205.05442
Publikováno v:
The European Physical Journal C, 82 (2022) 327
We investigate the effects of the Born-Infeld action on the Abelian sector of the electroweak model. The consequence of this approach is the emergence of anomalous couplings in the neutral sector of the $Z$-gauge boson and photon. These new couplings
Externí odkaz:
http://arxiv.org/abs/2109.11004
Publikováno v:
Phys. Rev. D 104, 015006 (2021)
Non-linear electrodynamic models are re-assessed in this paper to pursue an investigation of the kinematics of the Compton effect in a magnetic background. Before considering specific models, we start off by presenting a general non-linear Lagrangian
Externí odkaz:
http://arxiv.org/abs/2101.03642
Autor:
Campos, M. G., Ospedal, L. P. R.
Dimensionality aspects of non-minimal electromagnetic couplings are investigated. By means of the Foldy-Wouthuysen transformation, we attain (non-)relativistic interactions related to the non-minimal coupling in three-dimensional spacetime, for both
Externí odkaz:
http://arxiv.org/abs/2012.06297
We address the effect of an anomalous triple gauge boson couplings on a physical observable for the electroweak sector of the Standard Model, when the $SU(2)_{L}\otimes U(1)_{Y}$ symmetry is spontaneously broken by the Higgs mechanism to $U(1)_{em}$.
Externí odkaz:
http://arxiv.org/abs/2008.04908
Publikováno v:
Phys. Rev. D 102, 084015 (2020)
We investigate spin- and velocity-dependent contributions to the gravitational inter-particle potential. The methodology adopted here is based on the expansion of the effective action in terms of form factors encoding quantum corrections. Restricting
Externí odkaz:
http://arxiv.org/abs/2006.12824