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Covariant realizations of kappa-deformed space (CROSBI ID 134806)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Meljanac, Stjepan ; Krešić-Jurić, Saša ; Stojić, Marko Covariant realizations of kappa-deformed space // European physical journal C : particles and fields, 51 (2007), 1; 229-240

Podaci o odgovornosti

Meljanac, Stjepan ; Krešić-Jurić, Saša ; Stojić, Marko

engleski

Covariant realizations of kappa-deformed space

We study a Lie algebra type $\kappa$-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.

Lie algebra type noncommutative spaces; kappa-deformed space; covariant realizations; Dirac derivatives

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Podaci o izdanju

51 (1)

2007.

229-240

objavljeno

1434-6044

Povezanost rada

Fizika, Matematika

Indeksiranost