Differential forms and κ-Minkowski spacetime from extended twist (CROSBI ID 194919)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Jurić, Tajron ; Meljanac, Stjepan ; Štrajn, Rina
engleski
Differential forms and κ-Minkowski spacetime from extended twist
We analyze bicovariant differential calculus on κ-Minkowski spacetime. It is shown that corresponding Lorentz generators and noncommutative coordinates compatible with bicovariant calculus cannot be realized in terms of commutative coordinates and momenta. Furthermore, κ-Minkowski space and NC forms are constructed by twist related to a bicrossproduct basis. It is pointed out that the consistency condition is not satisfied. We present the construction of κ-deformed coordinates and forms (super-Heisenberg algebra) using extended twist. It is compatible with bicovariant differential calculus with κ-deformed igl(4) -Hopf algebra. The extended twist leading to κ-Poincaré-Hopf algebra is also discussed.
noncommutative space; κ -Minkowski spacetime; differential forms; super-Heisenberg algebra; realizations; twist
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Podaci o izdanju
73
2013.
2472-2480
objavljeno
1434-6044
10.1140/epjc/s10052-013-2472-0