Geometry of the quantum universe

被引：30

作者：

Ambjorn, J. ^{[1
,3
,4
]}

Goerlich, A. ^{[2
]}

Jurkiewicz, J. ^{[2
]}

Loll, R. ^{[3
,4
]}

机构：

[1] Univ Copenhagen, Niels Bohr Inst, DK-2100 Copenhagen O, Denmark

[2] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland

[3] Univ Utrecht, Inst Theoret Phys, NL-3584 CE Utrecht, Netherlands

[4] Perimeter Inst Theoret Phys, Waterloo, ON N2L 2Y5, Canada

来源：

PHYSICS LETTERS B | 2010年 / 690卷 / 04期

关键词：

Quantum gravity; Monte Carlo simulations; Fractal structure; BABY UNIVERSES; GRAVITY;

D O I：

10.1016/j.physletb.2010.05.062

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A quantum universe with the global shape of a (Euclidean) de Sitter spacetime appears as dynamically generated background geometry in the causal dynamical triangulation (CDT) regularisation of quantum gravity. We investigate the micro- and macro-geometry of this universe, using geodesic shell decompositions of spacetime. More specifically, we focus on evidence of fractality and global anisotropy, and on how they depend on the bare coupling constants of the theory. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：420 / 426

页数：7

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