Could the photon dispersion relation be non-linear ?

Details Could the photon dispersion relation be non-linear ? Could the photon dispersion relation be non-linear ?

2008-12-18

arxiv.org/abs/0812.3564v3

Fortsch.Phys.57:505-513,2009

Physics

High Energy Physics

High Energy Physics - Theory

9 pages, 5 figures, talk presented at the 4. EU RTN Workshop on "Constituents, Fundamental Forces and Symmetries of the Univer

Scientific paper

10.1002/prop.200900021

The free photon dispersion relation is a reference quantity for high precision tests of Lorentz Invariance. We first outline theoretical approaches to a conceivable Lorentz Invariance Violation (LIV). Next we address phenomenological tests based on the propagation of cosmic rays, in particular in Gamma Ray Bursts (GRBs). As a specific concept, which could imply LIV, we then focus on field theory in a non-commutative (NC) space, and we present non-perturbative results for the dispersion relation of the NC photon.

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