Comparative of light propagation in Born-Infeld, Euler-Heisenberg and ModMax nonlinear electrodynamics

IF 5.3 2区 物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Journal of Cosmology and Astroparticle Physics Pub Date : 2024-11-07 DOI:10.1088/1475-7516/2024/11/002
Elda Guzman-Herrera, Ariadna Montiel and Nora Breton
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Abstract

We compare light propagation through an intense electromagnetic background as described by three different nonlinear electrodynamics: Born-Infeld (BI), Euler-Heisenberg (EH), and Modified Maxwell (MM). We use the concept of effective metric to determine the phase velocities of a propagating wave from the BI and EH nonlinear electrodynamics and use them to set constraints on the MM nonlinear parameter. In a second part of the paper, we consider the black hole solutions of the nonlinear electrodynamics coupled with General Relativity and determine the shadows cast by the static black holes. Confronting the observations of the shadows of M87* and Sagittarius A* with our theoretical results allows us to set restrictions on the nonlinear parameters.
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玻恩-因费尔德、欧拉-海森堡和 ModMax 非线性电动力学中光传播的比较
我们比较了三种不同的非线性电动力学所描述的光在强电磁背景中的传播情况:玻恩-因费尔德(BI)、欧拉-海森堡(EH)和修正麦克斯韦(MM)。我们利用有效度量的概念,从 BI 和 EH 非线性电动力学中确定传播波的相位速度,并用它们来设定 MM 非线性参数的约束条件。在论文的第二部分,我们考虑了与广义相对论耦合的非线性电动力学的黑洞解,并确定了静态黑洞投下的阴影。将对 M87* 和人马座 A* 黑洞阴影的观测结果与我们的理论结果相比较,我们可以对非线性参数设定限制。
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来源期刊
Journal of Cosmology and Astroparticle Physics
Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理
CiteScore
10.20
自引率
23.40%
发文量
632
审稿时长
1 months
期刊介绍: Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.
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