Quantum equation of motion and two-loop cutoff renormalization for ${\varphi }^3$ model

Abstract

We present two-loop renormalization of ${\varphi }^3$-model effective action by using the background field method and cutoff momentum regularization. In this paper, we also study a derivation of the quantum equation of motion and its application to the renormalization.

LaTeX, 15 pages, 3 figures; The work has been published three years ago. In this version we have made some corrections and added calculations for the counterterm

References in corpus (2)

• Diagram technique for the heat kernel of the covariant Laplace operator
• Radiative Corrections, Divergences, Regularization, Renormalization, Renormalization Group and All That in Examples in Quantum Field Theory