Derivatives, forms and vector fields on the kappa-deformed Euclidean space

Details Derivatives, forms and vector fields on the kappa-deformed Euclidean space Derivatives, forms and vector fields on the kappa-deformed Euclidean space

2004-04-28

arxiv.org/abs/hep-th/0404224v2

J.Phys. A37 (2004) 9749-9770

Physics

High Energy Physics

High Energy Physics - Theory

25 pages, footnotes and other small changes added

Scientific paper

10.1088/0305-4470/37/41/010

The model of kappa-deformed space is an interesting example of a noncommutative space, since it allows a deformed symmetry. In this paper we present new results concerning different sets of derivatives on the coordinate algebra of kappa-deformed Euclidean space. We introduce a differential calculus with two interesting sets of one-forms and higher-order forms. The transformation law of vector fields is constructed in accordance with the transformation behaviour of derivatives. The crucial property of the different derivatives, forms and vector fields is that in an n-dimensional spacetime there are always n of them. This is the key difference with respect to conventional approaches, in which the differential calculus is (n+1)-dimensional. This work shows that derivative-valued quantities such as derivative-valued vector fields appear in a generic way on noncommutative spaces.

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