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The fundamental constants in physics


Physik-Department Universität München, Theresien str. 37a, München, D-80333, Germany

We discuss the fundamental constants of physics in the Standard Model and possible changes of these constants on the cosmological time scale. Grand Unification of the strong, electromagnetic, and weak interactions implies relations between the time variation of the fine structure constant α and of the QCD scale Λc. A change in a of 10-15/year, as seen by an astrophysical experiment, implies a time variation in Λc of at least 10-15/year. An experiment in quantum optics at the MPQ in Münich, which was designed to seek a time variation in Λc, is discussed.

Fulltext is available at IOP
PACS: 06.20.Jr. 12.10.Kt, 32.20.-r
DOI: 10.3367/UFNe.0179.200904d.0383
URL: https://ufn.ru/en/articles/2009/4/d/
Citation: Fritzsch H "The fundamental constants in physics" Phys. Usp. 52 359–367 (2009)
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:   « » 179 383–392 (2009); DOI: 10.3367/UFNr.0179.200904d.0383

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