Aspects of Causality and Unitarity and Comments on Vortex-like Configurations in an Abelian Model with a Lorentz-Breaking Term

Details Aspects of Causality and Unitarity and Comments on Vortex-like Configurations in an Abelian Model with a Lorentz-Breaking Term Aspects of Causality and Unitarity and Comments on Vortex-like Configurations in an Abelian Model with a Lorentz-Breaking Term

2002-04-26

arxiv.org/abs/hep-th/0204232v2

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, latex

Scientific paper

10.1103/PhysRevD.67.085021

The gauge-invariant Chern-Simons-type Lorentz- and CPT-breaking term is here
reassessed and a spin-projector method is adopted to account for the breaking
(vector) parameter. Issues like causality, unitarity, spontaneous
gauge-symmetry breaking and vortex formation are investigated, and consistency
conditions on the external vector are identified.

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