Theory and Phenomenology of Space-Time DefectsReport as inadecuate




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Advances in High Energy Physics - Volume 2014 2014, Article ID 950672, 6 pages -

Review ArticleNordita, KTH Royal Institute of Technology and Stockholm University, Roslagstullsbacken 23, 106 91 Stockholm, Sweden

Received 5 December 2013; Accepted 12 February 2014; Published 20 March 2014

Academic Editor: Piero Nicolini

Copyright © 2014 Sabine Hossenfelder. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The publication of this article was funded by SCOAP

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Abstract

Whether or not space-time is fundamentally discrete is of central importance for the development of the theory of quantum gravity. If the fundamental description of spacetime is discrete, typically represented in terms of a graph or network, then the apparent smoothness of geometry on large scales should be imperfect—it should have defects. Here, we review a model for space-time defects and summarize the constraints on the prevalence of these defects that can be derived from observation.





Author: Sabine Hossenfelder

Source: https://www.hindawi.com/



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