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arXiv 1603.07166hep-th
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de Sitter时空中的Schwinger效应和反反应

Schwinger effect and backreaction in de Sitter spacetime

Clément Stahl, She-Sheng Xue

摘要:

我们考虑由强电场和德西特曲率产生的粒子-反粒子对。我们在1 + 1维中研究了电子对在电磁场作用下的反作用.为此,我们描述了德西特空间中电磁场的正则量子化,并在爱因斯坦-麦克斯韦方程中加入了由对感应的费米子电流。在解出这个方程后,我们发现电场要么被阻尼,要么不受影响,这取决于对质量和规范耦合的值。没有发现电磁场的增强来支持磁生成的情况。物理图像是局部产生的Schwinger对屏蔽了电磁场的产生和放大。然而,如果考虑由Schwinger机制产生的光玻色子,我们报告了一个电磁场增强的爱因斯坦-麦克斯韦方程的解。这个解决方案可能是一个新的途径原始磁。

英文摘要:

We consider the particle-antiparticle pairs produced by both a strong electric field and de Sitter curvature. We investigate in 1 + 1 D the backreaction of the pairs on the electromagnetic field. To do so we describe the canonical quantization of an electromagnetic field in de Sitter space and add in the Einstein-Maxwell equation the fermionic current induced by the pairs. After solving this equation, we find that the electric field gets either damped or unaffected depending on the value of the pair mass and the gauge coupling. No enhancement of the electromagnetic field to support a magnetogenesis scenario is found. The physical picture is that the Schwinger pairs locally created screen the production and amplification of the electromagnetic field. However, if one considers light bosons created by the Schwinger mechanism, we report a solution to the Einstein-Maxwell equation with an enhancement of the electromagnetic field. This solution could be a new path to primordial magnetogenesis.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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