Geometry of the quantum universe

J. Ambjørn; A. Görlich; J. Jurkiewicz; R. Loll

doi:10.1016/j.physletb.2010.05.062

Geometry of the quantum universe

J. Ambjørn, A. Görlich, J. Jurkiewicz, R. Loll

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Abstract

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.

Original language	English
Pages (from-to)	420-426
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	690
Issue number	4
DOIs	https://doi.org/10.1016/j.physletb.2010.05.062
Publication status	Published - 2010

Keywords

Quantum gravity
Monte Carlo simulations
Fractal structure

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title = "Geometry of the quantum universe",

abstract = "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.",

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AU - Ambjørn, J.

AU - Görlich, A.

AU - Jurkiewicz, J.

AU - Loll, R.

PY - 2010

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N2 - 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.

AB - 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.

KW - Quantum gravity

KW - Monte Carlo simulations

KW - Fractal structure

U2 - 10.1016/j.physletb.2010.05.062

DO - 10.1016/j.physletb.2010.05.062

M3 - Article

VL - 690

SP - 420

EP - 426

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 4

ER -

Geometry of the quantum universe

Abstract

Keywords

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