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arXiv 1908.07400gr-qc
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具有非测地线世界线的类光电荷模型

Models of light-like charges with non-geodesic world lines

Christian G. Boehmer, Peter A. Hogan

摘要:

广义相对论中的无质量粒子以光速运动,它们在时空中的轨迹由零测地线描述。这与粒子的电荷无关,然而,带电的类光的情况还不太清楚。从闵可夫斯基时空中具有类光测地线世界线的带电粒子的麦克斯韦场出发,我们构造了具有非测地线、类光世界线的带电粒子的麦克斯韦场。描述了闵可夫斯基时空中任意零世界线附近的必要几何,并讨论了由此产生的电磁场的性质。所得到的电磁场表示Lienard-Wiechert场的类似光的模拟,其将具有类时测地线世界线的电荷的库仑场推广到具有加速世界线的电荷的场。

英文摘要:

Massless particles in General Relativity move with the speed of light, their trajectories in spacetime are described by null geodesics. This is independent of the electrical charge of the particle being considered, however, the charged light-like case is less well understood. Starting with the Maxwell field of a charged particle having a light-like geodesic world line in Minkowskian space-time we construct the Maxwell field of such a particle having a non-geodesic, light-like world line. The necessary geometry in the neighbourhood of an arbitrary null world line in Minkowskian space-time is described and properties of the resulting electromagnetic field are discussed. The electromagnetic field obtained represents a light-like analogue of the Lienard-Wiechert field, which generalises the Coulomb field of a charge having a time-like geodesic world line to the field of a charge having an accelerated world line.

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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