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Taming nonlocality in theories with Planck-scale-deformed Lorentz symmetry

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arxiv 1006.2126 v3 pith:CF22PPCT submitted 2010-06-10 gr-qc hep-th

Giovanni Amelino-Camelia , Marco Matassa , Flavio Mercati , Giacomo Rosati This is my paper · ORCID
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We report a general analysis of worldlines for theories with deformed relativistic symmetries and momentum dependence of the speed of photons. Our formalization is faithful to Einstein's program, with spacetime points viewed as an abstraction of physical events. The emerging picture imposes the renunciation of the idealization of absolutely coincident events, but is free from some pathologies which had been previously conjectured.

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  1. Transverse relative locality effects in de Sitter spacetime

    gr-qc 2025-07 conditional novelty 7.0 of 10

    A transverse deformation of the 2+1D de Sitter algebra yields energy-dependent transverse shifts and curvature-induced angular deviations for observers separated by a comoving distance.

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