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Brane Lorentz Symmetry from Lorentz Breaking in the Bulk

O. Bertolami·C. Carvalho
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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.

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O. Bertolami, C. Carvalho. 2006-12-28. Brane Lorentz Symmetry from Lorentz Breaking in the Bulk. https://doi.org/10.1088/1742-6596%2F67%2F1%2F012009

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