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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 Keller
In 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.

History

Publication status

  • Published

Journal

Modern Physics Letters A

ISSN

0217-7323

Publisher

World Scientific Publishing

Issue

22

Volume

30

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2015-11-10

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