Lorentz Covariant k-Minkowski Spacetime

Abstract

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.

16 pages. references added, appendix enlarged, minor typos

References in corpus (1)

• The k-Minkowski Spacetime: Trace, Classical Limit and uncertainty Relations

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