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arXiv · 1102.0105

Runaway Domain Wall and Space-time Varying alpha

Takeshi Chiba·Masahide Yamaguchi
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Abstract

Recently spatial as well as temporal variations of the fine structure constant alpha have been reported. We show that a "runaway domain wall", which arises for the scalar field potential without minima, can account for such variations simultaneously. The time variation is induced by a runaway potential and the spatial variation is induced by the formation of a domain wall. The model is consistent with the current cosmological data and can be tested by the future experiments to test the equivalence principle.

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Takeshi Chiba, Masahide Yamaguchi. 2011-02-01. Runaway Domain Wall and Space-time Varying alpha. https://doi.org/10.1088/1475-7516/2011/03/044

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