Semiclassical Universe from First Principles
高能物理 - 理论
2009-11-10 v1 天体物理学
广义相对论与量子宇宙学
摘要
Causal Dynamical Triangulations in four dimensions provide a background-independent definition of the sum over space-time geometries in nonperturbative quantum gravity. We show that the macroscopic four-dimensional world which emerges in the Euclidean sector of this theory is a bounce which satisfies a semiclassical equation. After integrating out all degrees of freedom except for a global scale factor, we obtain the ground state wave function of the universe as a function of this scale factor.
引用
@article{arxiv.hep-th/0411152,
title = {Semiclassical Universe from First Principles},
author = {J. Ambjorn and J. Jurkiewicz and R. Loll},
journal= {arXiv preprint arXiv:hep-th/0411152},
year = {2009}
}
备注
15 pages, 4 figures