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arXiv 2110.03005gr-qcastro-ph.COhep-th
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非线性轴子电动力学:早期磁化宇宙中的轴向感应电耀斑

Nonlinear axion electrodynamics: Axionically induced electric flares in the early magnetized universe

Alexander B. Balakin, Vladimir V. Bochkarev, Albina F. Nizamieva

摘要:

我们考虑非线性扩展的爱因斯坦-麦克斯韦-轴子理论,它是基于两个对称性的帐户:第一,离散对称性与轴子场的属性,第二,杰克逊的对称性,规定电动力学是不变的,相对于由电场和磁场协调的平面中的旋转。我们导出了非线性扩展理论的主方程,并将其应用于具有磁场的Bianchi-I模型。描述非线性耦合的轴子场、电磁场和引力场行为的主要结果是在早期磁化宇宙中轴感生电场的反常增长。这种反常电场的特性可以用耀斑这个术语来表示。我们期望,这些电耀斑可以产生电子-正电子对的创建,出生的带电粒子的显着加速,并由这些加速粒子的电磁波的发射。

英文摘要:

We consider the nonlinearly extended Einstein-Maxwell-axion theory, which is based on the account for two symmetries: first, the discrete symmetry associated with the properties of the axion field, second, the Jackson's symmetry, prescribing to the electrodynamics to be invariant with respect to the rotation in the plane coordinated by the electric and magnetic fields. We derive the master equations of the nonlinearly extended theory, and apply them to the Bianchi-I model with magnetic field. The main result, describing the behavior of the nonlinearly coupled axion, electromagnetic and gravitational fields is the anomalous growth of the axionically induced electric field in the early magnetized Universe. The character of behavior of this anomalous electric field can be indicated by the term flare. We expect, that these electric flares can produce the electron-positron pair creation, significant acceleration of the born charged particles, and emission of the electromagnetic waves by these accelerated particles.

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