Creatable Universes
General Relativity and Quantum Cosmology
2008-11-26 v2 Astrophysics
Abstract
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.
Keywords
Cite
@article{arxiv.0705.1049,
title = {Creatable Universes},
author = {Joan Josep Ferrando and Ramon Lapiedra and Juan Antonio Morales},
journal= {arXiv preprint arXiv:0705.1049},
year = {2008}
}