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Cosmological evolution of fundamental constants: from theory to experiment
journal contribution
posted on 2023-06-08, 23:06 authored by Xavier CalmetXavier Calmet, Matthias KellerMatthias KellerIn this paper, we discuss a possible cosmological time evolution of fundamental constants from the theoretical and experimental point of views. On the theoretical side, we explain that such a cosmological time evolution is actually something very natural which can be described by mechanisms similar to those used to explain cosmic inflation. We then discuss implications for grand unified theories, showing that the unification condition of the gauge coupling could evolve with cosmological time. Measurements of the electron-to-proton mass ratio can test grand unified theories using low energy data. Following the theoretical discussion, we review the current status of precision measurements of fundamental constants and their potential cosmological time dependence.
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Publication status
- Published
Journal
Modern Physics Letters AISSN
0217-7323Publisher
World Scientific PublishingExternal DOI
Issue
22Volume
30Department affiliated with
- Physics and Astronomy Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2015-11-10Usage metrics
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