Doubly Special Relativity and Relative Locality
Andrea Bevilacqua, Jerzy Kowalski-Glikman

TL;DR
This paper introduces the concepts of Doubly Special Relativity and Relative Locality, discussing their motivations, basic technical results, and implications like energy-dependent light speed and the soccer ball problem.
Contribution
It provides an accessible overview of the foundational ideas and technical aspects of Doubly Special Relativity and Relative Locality, highlighting recent developments.
Findings
Energy-dependent speed of light discussed
Brief description of the soccer ball problem
Foundational technical results summarized
Abstract
This is a write-up of two lectures delivered at COST CA18108 First Training School. They cover the motivations and some basic technical results in the field of Doubly Special Relativity and Relative Locality. The energy-dependent speed of light is a recurring theme here. The soccer ball problem is also briefly described. The video recording of these and other lectures can be found at https://www.youtube.com/channel/UChRfzgjTkO9sOkwq358kHZw/videos.
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Taxonomy
TopicsRelativity and Gravitational Theory · Quantum and Classical Electrodynamics · Noncommutative and Quantum Gravity Theories
