## Kappa-deformation of Heisenberg algebra and coalgebra; generalized Poincare algebras and R-matrix    [PDF]

Stjepan Meljanac, Andjelo Samsarov, Rina Strajn
We deform Heisenberg algebra and corresponding coalgebra by twist. We present undeformed and deformed tensor identities. Coalgebras for the generalized Poincar\'{e} algebras have been constructed. The exact universal $R$-matrix for the deformed Heisenberg (co)algebra is found. We show, up to the third order in the deformation parameter, that in the case of $\kappa$-Poincar\'{e} Hopf algebra this $R$-matrix can be expressed in terms of Poincar\'{e} generators only. This implies that the states of any number of identical particles can be defined in a $\kappa$-covariant way.
View original: http://arxiv.org/abs/1204.4324