$\kappa$-Poincaré phase space: speed of massless particles and relativity of spacetime locality

Abstract

The study of phase-space constructions based on the properties of the $\kappa$-Poincaré Hopf algebra has been a very active area, mostly because of its possible applications in the phenomenology of Planck-scale-induced momentum dependence of the speed of ultrarelativistic particles. We here summarize, with emphasis on the emerging relativity of spacetime locality, some results relevant for this research program that were recently reported in arXiv:1006.2126 (PhysRevLett106,071301) arXiv:1102.4637 (PhysLettB700,150) and arXiv:1107.1724 .

23 pages, 8 figures, LaTex; contribution to the proceedings of the 7th International Conference on Quantum Theory and Symmetries (QTS7), 7-13 August 2011, Prague, Czech Republic

References in corpus (7)

• Prospects for constraining quantum gravity dispersion with near term observations
• Kappa-Minkowski space-time and the star product realizations
• Bounds on an energy-dependent and observer-independent speed of light from violations of locality
• A Lagrangian for DSR Particle and the Role of Noncommutativity
• Speed of particles and a relativity of locality in $\kappa$-Minkowski quantum spacetime
• Probing a Possible Vacuum Refractive Index with Gamma-Ray Telescopes
• Kinematics of a relativistic particle with de Sitter momentum space

Cited by in corpus (1)

• Realization of DSR-relativistic symmetries in Finsler geometries