Dark matter from a gas of wormholes
Abstract
The simplistic model of the classical spacetime foam is considered, which consists of static wormholes embedded in Minkowski spacetime. We explicitly demonstrate that such a foam structure leads to a topological bias of pointlike sources which can equally be interpreted as the presence of a dark halo around any point source. It is shown that a nontrivial halo appears on scales where the topological structure possesses local inhomogeneity, while the homogeneous structure reduces to a constant renormalization of the intensity of sources. We also show that in general dark halos possess both (positive and negative) signs depending on scales and specific properties of the topological structure of space.
 Publication:

Physics Letters B
 Pub Date:
 February 2008
 DOI:
 10.1016/j.physletb.2007.12.034
 arXiv:
 arXiv:0707.1081
 Bibcode:
 2008PhLB..660...93K
 Keywords:

 Astrophysics;
 General Relativity and Quantum Cosmology;
 High Energy Physics  Theory
 EPrint:
 minor corrections (eq. 18)