Quasiclassical coherent trajectory states of a spinless relativistic particle in an arbitrary electromagnetic field

Approximate (quasiclassical) solutions of the Klein-Gordon equation for a charge in an arbitrary electromagnetic field are constructed. One of the decisive properties of these solutions is that the average quantum-mechanical values of the coordinates and momenta in these states are the exact solutions of the classical relativistic Hamiltonian equations.Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 4, pp. 48–50, April, 1982.