Spatial Variations of Fundamental Constants

Details Spatial Variations of Fundamental Constants Spatial Variations of Fundamental Constants

1999-04-09

arxiv.org/abs/astro-ph/9904116v1

Mon.Not.Roy.Astron.Soc. 322 (2001) 585

Astronomy and Astrophysics

Astrophysics

4 pages

Scientific paper

10.1046/j.1365-8711.2001.04157.x

We show that observational limits on the possible time variation of constants of Nature are significantly affected by allowing for both space and time variation. Bekenstein's generalisation of Maxwell's equations to allow for cosmological variation of $alpha$ is investigated in a universe containing spherically symmetric inhomogeneities. The time variation of $alpha$ is determined by the local matter density and hence limits obtained in high-density geophysical enviroments are far more constraining than those obtained at high redshift. This new feature is expected to be a property of a wide class of theories for the variation of constants.

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