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arXiv · hep-ph/0306084

Time Variation of the Fine Structure Constant Driven by Quintessence

Abstract

There are indications from the study of quasar absorption spectra that the fine structure constant $α$ may have been measurably smaller for redshifts $z>2.$ Analyses of other data ($^{149}$Sm fission rate for the Oklo natural reactor, variation of $^{187}$Re $β$-decay rate in meteorite studies, atomic clock measurements) which probe variations of $α$ in the more recent past imply much smaller deviations from its present value. In this work we tie the variation of $α$ to the evolution of the quintessence field proposed by Albrecht and Skordis, and show that agreement with all these data, as well as consistency with WMAP observations, can be achieved for a range of parameters. Some definite predictions follow for upcoming space missions searching for violations of the equivalence principle.

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BibTeXRIS

Luis Anchordoqui, Haim Goldberg. 2003-09-04. Time Variation of the Fine Structure Constant Driven by Quintessence. https://doi.org/10.1103/physrevd.68.083513

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