Supermassive cosmic string compactifications
Abstract
The space-time dimensions transverse to a static straight cosmic string with a sufficiently large tension (supermassive cosmic strings) are compact and typically have a singularity at a finite distance form the core. In this paper, we discuss how the presence of multiple supermassive cosmic strings in the 4d Abelian-Higgs model can induce the spontaneous compactification of the transverse space and explicitly construct solutions where the gravitational background becomes regular everywhere. We discuss the embedding of this model in Script N = 1 supergravity and show that some of these solutions are half-BPS, in the sense that they leave unbroken half of the supersymmetries of the model.
- Publication:
-
Journal of Cosmology and Astroparticle Physics
- Pub Date:
- June 2014
- DOI:
- 10.1088/1475-7516/2014/06/001
- arXiv:
- arXiv:1312.5441
- Bibcode:
- 2014JCAP...06..001B
- Keywords:
-
- High Energy Physics - Theory;
- General Relativity and Quantum Cosmology
- E-Print:
- 32 pages, 8 figures