Here we discuss the path integral formalism for quantization of fields. The basic idea is reviewed and explained. This is completely based on the book ``Quantum Field Theory A Modern Introduction" by Michio Kaku. For calculation natural system of units is taken.
This is the russian template of a manuscript
This is a russian version of the template for preparing manuscripts for the Astrophysical Bulletin journal. It uses RevTeX4.2 as the basis for the compilation.