Retarded Functions in Noncommutative Theories
High Energy Physics - Theory
2009-11-10 v2
Abstract
The perturbative approach to quantum field theory using retarded functions is extended to noncommutative theories. Unitarity as well as quantized equations of motion are studied and seen to cause problems in the case of space-time noncommutativity. A modified theory is suggested that is unitary and preserves the classical equations of motion on the quantum level.
Cite
@article{arxiv.hep-th/0412313,
title = {Retarded Functions in Noncommutative Theories},
author = {Tobias Reichenbach},
journal= {arXiv preprint arXiv:hep-th/0412313},
year = {2009}
}
Comments
12 pages, minor corrections and additions, journal reference added