Brane Lorentz Symmetry from Lorentz Breaking in the Bulk
arXiv:gr-qc/0612129 · doi:10.1088/1742-6596/67/1/012009
Abstract
We propose the mechanism of spontaneous symmetry breaking of a bulk vector field as a way to generate the selection of bulk dimensions invisible to the standard model confined to the brane. By assigning a non-vanishing vacuum value to the vector field, a direction is singled out in the bulk vacuum, thus breaking the bulk Lorentz symmetry. We present the condition for induced Lorentz symmetry on the brane, as phenomenologically required.
11 pages, Latex file with IOP style. To appear in Journal of Physics: Conference Series. Based on talk present by O.B. at the Third International Workshop DICE2006, Quantum Mechanics between Decoherence and Determinism: new aspects from particle physics to cosmology, 11-15 September 2006, Piombino, Italy. Typos corrected
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