论文标题
曲线时空中的二元性对称电动力学
Duality Symmetric Electrodynamics in Curved Spacetime
论文作者
论文摘要
我们从第一原理中得出麦克斯韦方程的电场和磁场,放松对标准方法固有的四个目标固有的结构的不必要的假设,从而在以下两个重要情况下恢复与等价原理的全部一致性:首先,如果将电磁场视为允许的粒子,则将其视为允许使用的颗粒量,并以衡量所用的颗粒量,并将其置于测量中。我们发现,在通用的弯曲时空中,电磁场必须用两对电场和磁场来描述,而不是仅在平坦的时空情况下足够的一对。
We derive Maxwell equations for electric and magnetic fields in curved spacetime from first principles, relaxing an unnecessary assumption on the structure of the four-potential inherent to the standard approach and thus restoring the full consistency with the equivalence principle in the following two important cases: first, if the electromagnetic field is considered as a physical entity separate from the charged particles used to measure it, and second, if hypothetical magnetically charged particles are allowed to exist. We find that in a generic curved spacetime, the electromagnetic field has to be described by two pairs of electric and magnetic fields, instead of the only one pair which is enough in the flat spacetime case.