类光子带电粒子的辐射反应与重整化
Radiation reaction and renormalization for a photon-like charged particle
摘要：
利用能量-动量和角动量平衡方程的重整化方法，导出了无质量点状电荷的有效运动方程。与大质量的情况不同，辐射的能量动量和角动量的比率在源被加速时趋于无穷大。不改变粒子速度的外部电磁场只承认它在相互作用区域内的存在。有效的运动方程是关于电磁张量的本征值和本征向量的方程。当有效运动方程具有一致解时，无质量电荷沿本征矢量确定的基线运动。有趣的是，同样的解决方案出现在一个快速旋转的中子星（脉冲星）的磁层Rylov的模型。
英文摘要：
A renormalization scheme which relies on energy-momentum and angular momentum balance equations is applied to the derivation of effective equation of motion for a massless point-like charge. Unlike the massive case, the rates of radiated energy-momentum and angular momentum tend to infinity whenever the source is accelerated. The external electromagnetic fields which do not change the velocity of the particle admit only its presence within the interaction area. The effective equation of motion is the equation on eigenvalues and eigenvectors of the electromagnetic tensor. The massless charges move along base line determined by the eigenvectors when the effective equation of motion possesses uniform solutions. It is interesting that the same solution arises in Rylov's model of magnetosphere of a rapidly rotating neutron star (pulsar).
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