The Salpeter equation and probability current in the relativistic Hamiltonian quantum mechanics

Abstract

The probablity current for a quantum spinless relativistic particle is introduced based on the Hamiltonian dynamics approach utilizing the Salpeter equation as an alternative of the Klein-Gordon equation. The correctness of the presented formalism is illustrated by examples of exact solutions to the Salpeter equation including the new ones introduced in this work.

Comments: 10 PostScript figures