
TL;DR
This paper explores how higher-dimensional wormholes interacting with our universe can lead to the formation of stable, particle-like wormholes that may serve as dark matter candidates, expanding understanding of brane-world cosmology.
Contribution
It demonstrates that wormholes from higher dimensions can induce persistent, particle-like structures in our universe, providing a novel perspective on dark matter and brane-world interactions.
Findings
Persistent wormholes behave as particle-like objects.
These objects interact solely through gravity.
Potential role as dark matter candidates.
Abstract
Higher-dimensional black holes have long been considered within the context of brane worlds. Recently, it was shown that the brane-world ethos also permits the consideration of higher-dimensional wormholes. When such a wormhole, preexisting in the bulk, impinges upon our universe, taken to be a positive-tension 3-brane, it can induce the creation in our universe of a wormhole of ordinary dimensionality. The throat of this wormhole might fully constrict, pinch off, and thus birth a baby universe. Alternatively, the induced wormhole might persist. I show that persistence is more likely and note that the persistent wormhole manifests as a particle-like object whose interaction with cosmic matter is purely gravitational. I consider briefly the viability of this object as a dark matter candidate.
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