06-07E
06-07E
Radiation reaction and renormalization for a photon-like charged particle
Energy-momentum and angular momentum carried by field of a massless point-like charge are calculated. 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 equation of motion possesses uniform solutions. The same solution arises in Rylov's model of magnetosphere of a pulsar.