Theoretical topics in spacetime-symmetry violations

Details Theoretical topics in spacetime-symmetry violations Theoretical topics in spacetime-symmetry violations

2007-10-02

arxiv.org/abs/0710.0411v1

Physics

High Energy Physics

High Energy Physics - Theory

7 pages; presented at 4th Meeting on CPT and Lorentz Symmetry (CPT 07), Bloomington, Indiana, 8-11 Aug 2007

Scientific paper

The Lorentz- and CPT-violating Chern-Simons extension of electrodynamics is considered. In the context of N=4 supergravity in four spacetime dimensions, it is argued that cosmological solutions can generate this extension. Within Chern-Simons electrodynamics, theoretical and phenomenological topics are reviewed that concern the number of the remaining spacetime symmetries and the vacuum Cherenkov effect, respectively.

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