# The Quantum Action Principle in the framework of Causal Perturbation Theory

January 09, 2008

In perturbative quantum field theory the maintenance of classical symmetries is quite often investigated by means of algebraic renormalization, which is based on the Quantum Action Principle. We formulate and prove this principle in a new framework, in causal perturbation theory with localized interactions. Throughout this work a universal formulation of symmetries is used: the Master Ward Identity.

open access link
doi:10.1007/978-3-7643-8736-5_11

@inproceedings{Brennecke:2008zr,
author = "Brennecke, Ferdinand and Duetsch, Michael",
title = "{The Quantum Action Principle in the framework of Causal
Perturbation Theory}",
booktitle = "{Quantum field theory: Competitive models. Proceedings,
3rd Workshop on Recent developemnts in quantum field
theory, Leipzig, Germany, July 20-22, 2007}",
year = "2008",
pages = "177-196",
doi = "10.1007/978-3-7643-8736-5_11",
eprint = "0801.1408",
archivePrefix = "arXiv",
primaryClass = "hep-th",
SLACcitation = "%%CITATION = ARXIV:0801.1408;%%"
}

Keywords:

causal perturbation theory, Master Ward Identity