Lightcone fluctuations in quantum gravity and extra dimensions
General Relativity and Quantum Cosmology
2009-10-31 v4 Astrophysics
High Energy Physics - Phenomenology
High Energy Physics - Theory
Quantum Physics
Abstract
We discuss how compactified extra dimensions may have potentially observable effects which grow as the compactification scale decreases. This arises because of lightcone fluctuations in the uncompactified dimensions which can result in the broadening of the spectral lines from distant sources. We analyze this effect in a five dimensional model, and argue that data from gamma ray burst sources require the compactification length to be greater than about cm in this model.
Keywords
Cite
@article{arxiv.gr-qc/9907037,
title = {Lightcone fluctuations in quantum gravity and extra dimensions},
author = {Hongwei Yu and L. H. Ford},
journal= {arXiv preprint arXiv:gr-qc/9907037},
year = {2009}
}
Comments
Two additional references added