Persistence of Induced Wormholes in Brane Worlds - General Relativity and Quantum CosmologyReportar como inadecuado




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Abstract: Higher-dimensional black holes have long been considered within the contextof brane worlds. Recently, it was shown that the brane-world ethos also permitsthe consideration of higher-dimensional wormholes. When such a wormhole,preexisting in the bulk, impinges upon our universe, taken to be apositive-tension 3-brane, it induces the creation in our universe of a wormholeof ordinary dimensionality. The throat of this wormhole might fully constrict,pinch off, and thus birth a baby universe. Alternatively, the induced wormholemight persist. I show that persistence is more likely and note that thepersistent wormhole manifests as a particle-like object whose interaction withcosmic matter is purely gravitational. As such it may be considered a viablecandidate for the sort of weakly interacting massive particle long believed tobe the prime constituent of cold dark matter.



Autor: Enrico Rodrigo

Fuente: https://arxiv.org/







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