2002/11/11 by A. I. Nikishov, Nikishov, A. I.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Theory (hep-th) #hep-th
paper · pdf · doi:10.48550/arxiv.hep-th/0211088
9 pages, acknowledgement added
arxiv created 2003/01/15 · arxiv updated 2009/11/30
Two families of sets, nonstationary and stationary, are obtained. Each nonstationary set ψpv consists of the solutions with the quantum number pv=p0v-p3. It can be obtained from the nonstationary set ψp3 with quantum number p3 by a boost along x3-axis (along the direction of the electric field) with velocity -v. Similarly, any stationary set of solutions characterized by a quantum number ps=p0-sp3 can be obtained from stationary solutions with quantum number p0 by the same boost with velocity -s. All these sets are equivalent and the classification (i.e. ascribing the frequency sign and in-, out- indexes) in any set is determined by the classification in ψp3-set, where it is beyond doubt.