标题： 相对论与同步辐射：对现有理论的再审视 显示英文标题

标题： Relativity and Synchrotron Radiation: Critical Reexamination of Existing Theory

摘要： 麦克斯韦方程仅在洛伦兹系中成立，即使用爱因斯坦同步程序来分配时间坐标值的惯性系。必须在动力学和电动力学中以一致的方式应用爱因斯坦时间顺序。然而，加速器工程中通常对恒定磁场中相对论粒子动力学的非协变处理看起来与非相对论牛顿动力学完全相同。根据这两种处理方式，磁场只能改变运动方向，而不能改变电子的速度。然而，非协变轨迹不包含相对论运动学效应。协变电子轨迹是从洛伦兹实验室系观察到的连续无限小洛伦兹变换的结果。非共线洛伦兹提升的非对易性的一个后果是，在恒定磁场中协变和非协变单粒子轨迹之间的差异。可以注意到，这个关键点从未受到物理界的关注。因此需要对传统辐射理论进行修正。在本文中，我们对现有的同步辐射理论进行了批判性的重新审视。本文的重点是弯曲磁铁和波荡器的自发同步辐射。 显示英文摘要

摘要： Maxwell's equations are valid only in Lorentz frame i.e. in inertial frame where the Einstein synchronization procedure is used to assign values of the time coordinate. Einstein time order must be applied and kept in consistent way in both dynamics and electrodynamics. However, the usual for accelerator engineering non-covariant treatment of relativistic particle dynamics in a constant magnetic field looks precisely the same as in non-relativistic Newtonian dynamics. According to both treatments, the magnetic field is only capable of altering the direction of motion, but not the speed of an electron. However, the non-covariant trajectory does not include relativistic kinematics effects. The covariant electron trajectory is viewed from the Lorentz lab frame as a result of successive infinitesimal Lorentz transformations. One of the consequences of non-commutativity of non-collinear Lorentz boosts is a difference between covariant and non-covariant single particle trajectories in a constant magnetic field. One can see that this essential point has never received attention in the physical community. As a result a correction of the conventional radiation theory is required. In this paper we present a critical reexamination of existing synchrotron radiation theory. The main emphasis of this paper is on spontaneous synchrotron radiation from bending magnets and undulators.