arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1708.08017hep-thgr-qc
收藏

具有消失量子修正的电磁场

Electromagnetic fields with vanishing quantum corrections

Marcello Ortaggio, Vojtěch Pravda

摘要:

我们表明,一大类零电磁场是免疫的麦克斯韦方程组的任何修改的形式的任意权力和衍生物的场强。因此,这些是几乎任何包含非线性项和高阶导数的广义经典电动力学的精确解,包括,例如,非线性电动力学以及QED和弦激励的有效理论。这一结果不仅在平坦或(反)德西特背景下成立,而且在更大的孔特时空子集中也成立,这允许存在对齐的引力波和纯辐射。

英文摘要:

We show that a large class of null electromagnetic fields are immune to any modifications of Maxwell's equations in the form of arbitrary powers and derivatives of the field strength. These are thus exact solutions to virtually any generalized classical electrodynamics containing both non-linear terms and higher derivatives, including, e.g., non-linear electrodynamics as well as QED- and string-motivated effective theories. This result holds not only in a flat or (anti-)de Sitter background, but also in a larger subset of Kundt spacetimes, which allow for the presence of aligned gravitational waves and pure radiation.

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。

↑