Aether Compactification
Feb, 20084 pages
Published in:
- Phys.Rev.D 78 (2008) 044047
e-Print:
- 0802.0521 [hep-ph]
Report number:
- CALT-68-2670
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Abstract: (arXiv)
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.- 04.50.Cd
- ether
- compactification
- dimension: 5
- violation: Lorentz
- field theory: tensor
- dispersion relation
- mass spectrum: Kaluza-Klein
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