Emergence of a 4D World from Causal Quantum Gravity
arXiv:hep-th/0404156 · doi:10.1103/PhysRevLett.93.131301
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.
11 pages, 3 figures; some short clarifying comments added; final version to appear in Phys. Rev. Lett