Holes in the walls: Primordial black holes as a solution to the cosmological domain wall problem
Abstract
We propose a scenario in which the cosmological domain wall and monopole problems are solved without any fine tuning of the initial conditions or parameters in the Lagrangian of an underlying filed theory. In this scenario domain walls sweep out (unwind) the monopoles from the early universe, then the fast primordial black holes perforate the domain walls, change their topology and destroy them. We find further that the (old vacuum) energy density released from the domain walls could alleviate but not solve the cosmological flatness problem.
 Publication:

Physical Review D
 Pub Date:
 August 2005
 DOI:
 10.1103/PhysRevD.72.045012
 arXiv:
 arXiv:hepph/0505026
 Bibcode:
 2005PhRvD..72d5012S
 Keywords:

 11.27.+d;
 98.80.Cq;
 Extended classical solutions;
 cosmic strings domain walls texture;
 Particletheory and fieldtheory models of the early Universe;
 High Energy Physics  Phenomenology;
 Astrophysics;
 General Relativity and Quantum Cosmology
 EPrint:
 References added