Creatable Universes

Details Creatable Universes Creatable Universes

2007-05-08

arxiv.org/abs/0705.1049v2

Phys.Rev.D75:124003,2007

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

19 pages; v2: we have added an Appendix to make explicit the proof of the quasi-uniqueness of the defined energy and momenta o

Scientific paper

10.1103/PhysRevD.75.124003

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.

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