Loop diagrams in space with SU(2) fuzziness
High Energy Physics - Theory
2008-11-26 v2
Abstract
The structure of loop corrections is examined in a scalar field theory on a three dimensional space whose spatial coordinates are noncommutative and satisfy SU(2) Lie algebra. In particular, the 2- and 4-point functions in scalar theory are calculated at the 1-loop order. The theory is UV-finite as the momentum space is compact. It is shown that the non-planar corrections are proportional to a one dimensional -function, rather than a three dimensional one, so that in transition rates only the planar corrections contribute.
Keywords
Cite
@article{arxiv.0712.2216,
title = {Loop diagrams in space with SU(2) fuzziness},
author = {H. Komaie-Moghaddam and M. Khorrami and A. H. Fatollahi},
journal= {arXiv preprint arXiv:0712.2216},
year = {2008}
}
Comments
v1: 12 pages, LaTeX, submitted PLB, v2: missing 2\pi is restored in 4-point function; last paragraph improved