Near-Milne realization of scale-invariant fluctuations
| dc.creator | Magueijo, Joao | |
| dc.date | 2007-03-29 | |
| dc.date.accessioned | 2026-07-07T11:57:33Z | |
| dc.date.available | 2026-07-07T11:57:33Z | |
| dc.description | A near-Milne Universe produces a very red spectrum of vacuum quantum fluctuations, but has the potential to produce near-scale invariant {\it thermal} fluctuations. This happens if the energy and entropy are mildly sub-extensive, for example if there is a Casimir contribution. Therefore, one does not need to invoke corrections to Einstein gravity (as in loop quantum cosmology) for a thermal scenario to be viable. Neither do we need the energy to scale like the area, as in scenarios where the thermal fluctuations are subject to a phase transition in the early Universe. Some odd features of this model are pointed out: whether they are fatal or merely unusual should be the subject of future investigations. | |
| dc.identifier | https://arxiv.org/abs/astro-ph/0703781 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/0703781 | |
| dc.identifier | Phys.Rev.D76:123502,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.76.123502 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/205920 | |
| dc.subject | Astrophysics | |
| dc.title | Near-Milne realization of scale-invariant fluctuations | |
| dc.type | text |