Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2010-10-02
Phys.Lett.B697:63-69,2011
Physics
High Energy Physics
High Energy Physics - Theory
19 pages
Scientific paper
10.1016/j.physletb.2011.01.022
We revisit the problem of quantizing field theories on noncommutative Moyal spacetime with \emph{light-like} noncommutativity. To tackle the issues arising from noncommuting and hence nonlocal time, we argue that for this case light-front quantization procedure should be employed. In this appropriate quantization scheme we perform the non-planar loop analysis for the light-like noncommutative field theories. One of the important and peculiar features of light-front quantization is that the UV cutoff of the light-cone Hamiltonian manifests itself as an IR cutoff for the light-cone momentum, $p^+$. Due to this feature, the naive results of covariant quantization for the light-like case allude to the absence of the UV/IR mixing in the light-front quantization. However, by a careful analysis of non-planar loop integrals we show that this is not the case and the UV/IR mixing persists. In addition, we argue in favour of the perturbative unitarity of light-like noncommutative field theories in the light-front quantization scheme.
Sheikh-Jabbari Mohammad M.
Tureanu Anca
No associations
LandOfFree
Light-Like Noncommutativity, Light-Front Quantization and New Light on UV/IR Mixing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Light-Like Noncommutativity, Light-Front Quantization and New Light on UV/IR Mixing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light-Like Noncommutativity, Light-Front Quantization and New Light on UV/IR Mixing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-519591