Vacuum energy momentum tensor in (2+1) NC scalar field theory

Details Vacuum energy momentum tensor in (2+1) NC scalar field theory Vacuum energy momentum tensor in (2+1) NC scalar field theory

2004-01-27

arxiv.org/abs/hep-th/0401204v1

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, no figures

Scientific paper

A scalar field in (2+1) dimensional Minkowski space-time is considered. Postulating noncommutative spatial coordinates, one is able to determine the (UV finite) vacuum expectation value of the quantum field energy momentum tensor. Calculation for the (3+1) case has been performed considering only two noncommutative coordinates. The results lead to a vacuum energy with a lowered degree of divergence, with respect to that of ordinary commutative theory.

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