Aether Compactification

Carroll, Sean M.; Tam, Heywood

doi:10.1103/PhysRevD.78.044047

Aether Compactification

Sean M. Carroll
(
- Caltech
)
,
Heywood Tam
(
- Caltech
)

Feb, 2008

4 pages

Published in:

Phys.Rev.D 78 (2008) 044047

e-Print:

0802.0521 [hep-ph]

DOI:

10.1103/PhysRevD.78.044047

Report number:

CALT-68-2670

View in:

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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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