Nonequlibrium Renormalization Theory III

TL;DR

This paper develops a renormalization theory for nonequilibrium diagram techniques, specifically the Keldysh method, using the Bogoliubov-Parasiuk R-operation to analyze divergences in kinetic equations.

Contribution

It introduces a general renormalization framework for nonequilibrium diagram techniques, extending the applicability of the R-operation method.

Findings

Established a renormalization procedure for nonequilibrium diagrams.

Applied the theory to analyze divergences in kinetic equations.

Provided a foundation for further studies in nonequilibrium quantum field theory.

Abstract

In the present paper we develop the general theory of renormalization of some nonequilibrium diagram technique. This technique roughly is the Keldysh diagram technique. To develop our theory we have used the Bogoliubov -Parasiuk R - operation method. Our theory can be used for the studing of the divergences in kinetic equations.