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arXiv · 0802.0521

Aether Compactification

Sean M. Carroll·Heywood Tam
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Abstract

We propose a new way to hide extra dimensions without invoking branes, based on Lorentz-violating tensor fields with expectation values along the extra directions. We investigate the case of a single vector ``aether'' field on a compact circle. In such a background, interactions of other fields with the aether can lead to modified dispersion relations, increasing the mass of the Kaluza-Klein excitations. The mass scale characterizing each Kaluza-Klein tower can be chosen independently for each species of scalar, fermion, or gauge boson. No small-scale deviations from the inverse square law for gravity are predicted, although light graviton modes may exist.

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Sean M. Carroll, Heywood Tam. 2008-06-24. Aether Compactification. https://doi.org/10.1103/physrevd.78.044047

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