DSR and Canonical Transformations: A Comment on a ``A Lagrangian for DSR particle and the role of noncommutativity''
arXiv:0705.0143 · doi:10.1103/PhysRevD.76.048501
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