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Universe 2017, 3(2), 35; doi:10.3390/universe3020035

How to Reconstruct a Varying Speed of Light Signal from Baryon Acoustic Oscillations Surveys

Institute of Physics, University of Szczecin, Wielkopolska 15, 70-451 Szczecin, Poland
Academic Editor: Lorenzo Iorio
Received: 15 January 2017 / Revised: 4 April 2017 / Accepted: 6 April 2017 / Published: 11 April 2017
(This article belongs to the Special Issue Varying Constants and Fundamental Cosmology)
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Abstract

We describe an alternative way to use future Baryon Acoustic Oscillation observations to perform non-mainstream research. We focus on the so-called Varying Speed of Light theories, in which the speed of light is made to vary in time. Using prescriptions from future BAO surveys (BOSS, DESI, WFirst-2.4 and SKA), we show that, within such surveys, a 1% Varying Speed of Light (VSL) signal could be detected at 3 sigmas confidence level, in the redshift interval [0.75, 1.45]. Smaller signals will be hardly detected. We also discuss some possible problems related to such kinds of observation, in particular, the degeneracy between a VSL signal and a non-null spatial curvature. View Full-Text
Keywords: cosmology; Baryon Acoustic Oscillations; speed of light cosmology; Baryon Acoustic Oscillations; speed of light
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. (CC BY 4.0).

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Salzano, V. How to Reconstruct a Varying Speed of Light Signal from Baryon Acoustic Oscillations Surveys. Universe 2017, 3, 35.

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