Emergence of a 4D World from Causal Quantum Gravity
High Energy Physics - Theory
2010-04-06 v4 General Relativity and Quantum Cosmology
Abstract
Causal Dynamical Triangulations in four dimensions provide a background-independent definition of the sum over geometries in nonperturbative quantum gravity, with a positive cosmological constant. We present evidence that a macroscopic four-dimensional world emerges from this theory dynamically.
Keywords
Cite
@article{arxiv.hep-th/0404156,
title = {Emergence of a 4D World from Causal Quantum Gravity},
author = {J. Ambjorn and J. Jurkiewicz and R. Loll},
journal= {arXiv preprint arXiv:hep-th/0404156},
year = {2010}
}
Comments
11 pages, 3 figures; some short clarifying comments added; final version to appear in Phys. Rev. Lett