Covariant realizations of kappa-deformed space
High Energy Physics - Theory
2008-11-26 v2
Abstract
We study a Lie algebra type -deformed space with undeformed rotation algebra and commutative vector-like Dirac derivatives in a covariant way. Space deformation depends on an arbitrary vector. Infinitely many covariant realizations in terms of commuting coordinates of undeformed space and their derivatives are constructed. The corresponding coproducts and star products are found and related in a new way. All covariant realizations are physically equivalent. Specially, a few simple realizations are found and discussed. The scalar fields, invariants and the notion of invariant integration is discussed in the natural realization.
Keywords
Cite
@article{arxiv.hep-th/0702215,
title = {Covariant realizations of kappa-deformed space},
author = {Sasa Kresic-Juric and Stjepan Meljanac and Marko Stojic},
journal= {arXiv preprint arXiv:hep-th/0702215},
year = {2008}
}
Comments
31 pages, no figures, LaTeX