Creatable Universes

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.

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

References in corpus (7)

• An inhomogeneous alternative to dark energy?
• Evidence of vorticity and shear at large angular scales in the WMAP data: a violation of cosmological isotropy?
• Mapping Luminosity-Redshift Relationship to LTB Cosmology
• The Possibility of Cosmic Acceleration via Spatial Averaging in Lemaitre-Tolman-Bondi Models
• Does the Isotropy of the CMB Imply a Homogeneous Universe? Some Generalised EGS Theorems
• Non-homogeneity-driven Universe acceleration
• Local thermal equilibrium and ideal gas Stephani universes

Cited by in corpus (8)

• Quantum deformation of quantum cosmology: A framework to discuss the cosmological constant problem
• Intrinsic vanishing of energy and momenta in a universe
• Probing the creatable character of perturbed Friedmann-Robertson-Walker universes
• On the uniqueness of the space-time energy in General Relativity. The illuminating case of the Schwarzschild metric
• Intrinsic energy of Lemaître-Tolman-Bondi models and cosmological implications
• Stability of the intrinsic energy vanishing in the Schwarzschild metric under a slow rotation
• Spherical symmetric parabolic dust collapse: ${\mathcal{C}}^1$ matching metric with zero intrinsic energy
• Geodesic family of spherical instantons and cosmic quantum creation