Creatable Universes
| dc.creator | Ferrando, Joan Josep | |
| dc.creator | Lapiedra, Ramon | |
| dc.creator | Morales, Juan Antonio | |
| dc.date | 2007-05-08 | |
| dc.date | 2007-07-27 | |
| dc.date.accessioned | 2026-07-07T10:55:24Z | |
| dc.date.available | 2026-07-07T10:55:24Z | |
| dc.description | We consider the question of properly defining energy and momenta for non asymptotic Minkowskian spaces in general relativity. Only spaces of this type, whose energy, linear 3-momentum, and intrinsic angular momentum vanish, would be candidates for creatable universes, that is, for universes which could have arisen from a vacuum quantum fluctuation. Given a universe, we completely characterize the family of coordinate systems for which one could sensibly say that this universe is a creatable universe. | |
| dc.description | 19 pages; v2: we have added an Appendix to make explicit the proof of the quasi-uniqueness of the defined energy and momenta of the Universe, for every space-like 3-surface | |
| dc.identifier | https://arxiv.org/abs/0705.1049 | |
| dc.identifier | http://arxiv.org/abs/0705.1049 | |
| dc.identifier | Phys.Rev.D75:124003,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.75.124003 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/186067 | |
| dc.subject | General Relativity and Quantum Cosmology | |
| dc.subject | Astrophysics | |
| dc.title | Creatable Universes | |
| dc.type | text |