Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2004-02-16
Physics
High Energy Physics
High Energy Physics - Theory
12 pages, LaTeX style changed.Text file not changed. The paper will appear in the Proceedings of the International Workshop "S
Scientific paper
We describe firstly the basic features of quantum $\kappa$-Poincar\'{e} symmetries with their Hopf algebra structure. The quantum $\kappa$-Poincar\'{e} framework in any basis relates rigidly the quantum $\kappa$-Poincar\'{e} algebra with quantum $\kappa$-Poincar\'{e} group, noncommutative space-time and $\kappa$-deformed phase space. Further we present the approach of Doubly Special Relativity (DSR) theories, which introduce(in the version DSR1) kinematically the frame - independent fundamental mass parameter as described by maximal three-momentum $|\overrightarrow{p}|=\kappa c$. We argue why the DSR theories in one-particle sector can be treated as the part of quantum $\kappa$-Poincar\'{e} framework. The DSR formulation has been extended to multiparticle states either in a way leading to nonlinear description of classical relativistic symmetries, or providing the identification of DSR approach with full quantum $\kappa$-Poincar\'{e} framework.
Lukierski Jerzy
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