Download or read book The Dirac Equation and its Solutions written by Vladislav G. Bagrov and published by Walter de Gruyter GmbH & Co KG. This book was released on 2014-08-20 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dirac equation is of fundamental importance for relativistic quantum mechanics and quantum electrodynamics. In relativistic quantum mechanics, the Dirac equation is referred to as one-particle wave equation of motion for electron in an external electromagnetic field. In quantum electrodynamics, exact solutions of this equation are needed to treat the interaction between the electron and the external field exactly. In this monograph, all propagators of a particle, i.e., the various Green's functions, are constructed in a certain way by using exact solutions of the Dirac equation.