Renormalization-group running cosmologies and the generalized second law
| dc.creator | Horvat, R. | |
| dc.date | 2007-02-15 | |
| dc.date | 2007-03-22 | |
| dc.date.accessioned | 2026-07-07T11:01:43Z | |
| dc.date.available | 2026-07-07T11:01:43Z | |
| dc.description | We explore some thermodynamical consequences of accelerated universes driven by a running cosmological constant (CC) from the renormalization group (RG). Application of the generalized second law (GSL) of gravitational thermodynamics to a framework where the running of the CC goes at the expense of energy transfer between vacuum and matter, strongly restricts the mass spectrum of a (hypothetical) theory controlling the CC running. We find that quantum effects driving the running of the CC should be dominated by a trans-planckian mass field, in marked contrast with the GUT-scale upper mass bound obtained by analyzing density perturbations for the running CC. The model shows compliance with the holographic principle. | |
| dc.description | 8 pages, final version to appear in Phys. Lett. B | |
| dc.identifier | https://arxiv.org/abs/gr-qc/0702087 | |
| dc.identifier | http://arxiv.org/abs/gr-qc/0702087 | |
| dc.identifier | Phys.Lett.B648:374-377,2007 | |
| dc.identifier | doi:10.1016/j.physletb.2007.03.037 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188035 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | Astrophysics | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Renormalization-group running cosmologies and the generalized second law | |
| dc.type | text |