Field Theory on Noncommutative Spacetimes: Quasiplanar Wick Products
High Energy Physics - Theory
2009-01-27 v3
Abstract
We give a definition of admissible counterterms appropriate for massive quantum field theories on the noncommutative Minkowski space, based on a suitable notion of locality. We then define products of fields of arbitrary order, the so-called quasiplanar Wick products, by subtracting only such admissible counterterms. We derive the analogue of Wick's theorem and comment on the consequences of using quasiplanar Wick products in the perturbative expansion.
Keywords
Cite
@article{arxiv.hep-th/0408204,
title = {Field Theory on Noncommutative Spacetimes: Quasiplanar Wick Products},
author = {D. Bahns and S. Doplicher and K. Fredenhagen and G. Piacitelli},
journal= {arXiv preprint arXiv:hep-th/0408204},
year = {2009}
}
Comments
22 pages, 2 figures, v2: minor changes, v3: minor changes, reference added