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arXiv · 1709.02657

General Relativity with Local Space-time Defects

Sabine Hossenfelder·Ricardo Gallego Torromé
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Abstract

General relativity is incomplete because it cannot describe quantum effects of space-time. The complete theory of quantum gravity is not yet known and to date no observational evidence exists that space-time is quantized. However, in most approaches to quantum gravity the space-time manifold of general relativity is only an effective limit that, among other things like higher curvature terms, should receive corrections stemming from space-time defects. We here develop a modification of general relativity that describes local space-time defects and solve the Friedmann equations. From this, we obtain the time-dependence of the density of defects. It turns out that the defects' density dilutes quickly, somewhat faster even than radiation.

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Sabine Hossenfelder, Ricardo Gallego Torromé. 2017-09-08. General Relativity with Local Space-time Defects. https://doi.org/10.1088/1361-6382%2Faad38c

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