Lorentz Invariance Violation and its Role in Quantum Gravity Phenomenology

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dc.creatorCollins, John
dc.creatorPerez, Alejandro
dc.creatorSudarsky, Daniel
dc.date2006-03-01
dc.date.accessioned2026-07-07T07:06:12Z
dc.date.available2026-07-07T07:06:12Z
dc.descriptionThe notion that gravitation might lead to a breakdown of standard space-time structure at small distances, and that this might affect the propagation of ordinary particles has led to a program to search for violations of Lorentz invariance as a probe of quantum gravity. Initially it was expected that observable macroscopic effects caused by microscopic violations of Lorentz invariance would necessarily be suppressed by at least one power of the small ratio between the Planck length and macroscopic lengths. Here we discuss the implications of the fact that this expectation is in contradiction with standard properties of radiative corrections in quantum field theories. In normal field theories, radiative corrections in the presence of microscopic Lorentz violation give macroscopic Lorentz violation that is suppressed only by the size of Standard Model couplings, in clear conflict with observation. In general, this conclusion can only be avoided by extreme fine tuning of the parameters of the theory.
dc.descriptionDraft chapter contributed to the book "Towards quantum gravity", being prepared by Daniele Oriti for Cambridge University Press
dc.identifierhttps://arxiv.org/abs/hep-th/0603002
dc.identifierhttp://arxiv.org/abs/hep-th/0603002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109937
dc.subjectHigh Energy Physics - Theory
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleLorentz Invariance Violation and its Role in Quantum Gravity Phenomenology
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