DSR and Canonical Transformations: A Comment on a ``A Lagrangian for DSR particle and the role of noncommutativity''

Abstract

The aim of this comment is to call to the attention of DSR readers a basic fact. The introduction of noncommutative structures in problems like the one addressed in [1] is not necessary for the understanding of DSR physics. It can be described just as the relativistic free particle problem in a different parametrization.

3 pages. Accepted in PRD. v2 Fixed typos, reference added, version for PRD

References in corpus (6)

• Lorentz invariance with an invariant energy scale
• Introduction to Doubly Special Relativity
• A Lagrangian for DSR Particle and the Role of Noncommutativity
• DSR Relativistic Particle in a Lagrangian formulation and Non-Commutative Spacetime: A Gauge Independent Analysis
• Canonical Realizations of Doubly Special Relativity
• Equations of motion, Noncommutativity and Quantization

Cited by in corpus (3)

• Topics in Noncommutative Geometry Inspired Physics
• $\kappa$-Minkowski Spacetimes and DSR Algebras: Fresh Look and Old Problems
• Reply to Comment by J.A.Garcia, arXiv:0705.0143 (to appear in PRD)