Acceleration of the Universe in Type-0 Non-Critical Strings: a Review
| dc.creator | Mavromatos, N. E. | |
| dc.date | 2002-04-14 | |
| dc.date.accessioned | 2026-07-07T04:13:23Z | |
| dc.date.available | 2026-07-07T04:13:23Z | |
| dc.description | I review cosmology within the framework of type-0 non-critical strings, proposed in collaboration with G. Diamandis, B. Georgalas, E. Papantonopoulos and I. Pappa. The instabilities of the tachyonic backgrounds, due to the absence of space-time supersymmetry, are treated in this framework as a necessary ingredient to ensure cosmological flow. The model involves D3 brane worlds, whose initial quantum fluctuations induce the non criticality. I argue that this model is compatible with the current astrophysical observations pointing towards acceleration of the Universe. A crucial rôle for the correct ``phenomenology'' of the model, in particular the order-one value of the deceleration parameter, is played by the relative magnitude of the flux of the five form of the type-0 string as compared to the size of the volume of five of the extra dimensions, transverse to the direction of the flux-field. | |
| dc.description | 10 pages LATEX, 3 eps figures incorporated, Proceedings of Corfu 2001 Workshop on high energy physics, Corfu (Greece), September 2001 | |
| dc.identifier | https://arxiv.org/abs/hep-th/0204115 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0204115 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/51239 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | Astrophysics | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.title | Acceleration of the Universe in Type-0 Non-Critical Strings: a Review | |
| dc.type | text |