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arXiv · 1911.12700

Spacetime and deformations of special relativistic kinematics

J. M. Carmona·J. L. Cortes·J. J. Relancio
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Abstract

A deformation of special relativistic kinematics (possible signal of a theory of quantum gravity at low energies) leads to a modification of the notion of spacetime. At the classical level, this modification is required when one considers a model including single- or multi-interaction processes, for which absolute locality in terms of canonical space-time coordinates is lost. We discuss the different alternatives for observable effects in the propagation of a particle over very large distances that emerge from the new notion of spacetime. A central ingredient in the discussion is the cluster decomposition principle, which can be used to favor some alternatives over the others.

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J. M. Carmona, J. L. Cortes, J. J. Relancio. 2019-11-28. Spacetime and deformations of special relativistic kinematics. https://doi.org/10.3390/sym11111401

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