Multi-localization in multi-brane worlds Original Research Article

We study bulk fields in various multi-brane models with localized gravity. In the case of spin-0, 12 and 32 fields, the non-trivial background geometry itself can induce (multi-)localization of the zero modes along the extra dimension. The addition of appropriate mass terms controls the strength or/and the position of this localization and can induce (multi-)localization of spin-1 fields as well. We show that multi-brane models may also give rise to anomalously light KK modes which are also localized. The possibility of multi-localization in the context of supersymmetric brane world models in AdS5 spacetime is also discussed.