论文标题
无效电磁场
The Null and Force-Free Electromagnetic Field
论文作者
论文摘要
本文以完全几何学的术语描述了无效场和无力场的电动力学。正如先前在\ cite {menon_ff20}中建立的那样，无力的电动力学解决方案受到时空的某些特殊类型的叶子的存在。在这里，规定了无坐标形式主义中叶子的性质。通过在Friedmann-Lemaitre-Robertson-Walker（FLRW）时空中构建无力的电动力场来说明所有一般结果。
This paper describes the electrodynamics of a null and force-free field in completely geometric terms. As was previously established in \cite{Menon_FF20}, solutions to force-free electrodynamics are governed by the existence of certain special types of foliations of spacetime. Here the nature of the foliations in a coordinate-free formalism in the null case is prescribed. All of the general results are illustrated by constructing a null, force-free electrodynamic field in a Friedmann-Lemaitre-Robertson- Walker (FLRW) spacetime.
