Quantum field theory. Tutorial. Petrina D.Ya.

The manual sets out the theory of classical and quantum fields. Free quantum fields as operators in states spaces were studied, and the representations of canonical switching and anti -community ratios were built. The interacting quantum fields, Hamiltonian interaction and the scattering matrix, as well as volumetric, ultraviolet divergence and divergence associated with the infinite number of degrees of freedom of quantum fields are considered. For the scattering matrix and its matrix elements, a graphic image is introduced using diagrams. Much attention is paid to the methods of quantum theory of fields and the mathematical structure of its main quantities.

is intended for students of physical specialties of universities.