Lorentz Covariant k-Minkowski Spacetime

Details Lorentz Covariant k-Minkowski Spacetime Lorentz Covariant k-Minkowski Spacetime

2009-12-30

arxiv.org/abs/0912.5451v3

Physical Review D 81, 125024 (2010)

Physics

High Energy Physics

High Energy Physics - Theory

16 pages. references added, appendix enlarged, minor typos

Scientific paper

10.1103/PhysRevD.81.125024

In recent years, different views on the interpretation of Lorentz covariance of non commuting coordinates were discussed. Here, by a general procedure, we construct the minimal canonical central covariantisation of the k-Minkowski spacetime. We then show that, though the usual k-Minkowski spacetime is covariant under deformed (or twisted) Lorentz action, the resulting framework is equivalent to taking a non covariant restriction of the covariantised model. We conclude with some general comments on the approach of deformed covariance.

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