Constraints on the universe as a numerical simulation

被引：13

作者：

Beane, Silas R. ^{[1
,2
]}

Davoudi, Zohreh ^{[3
]}

J. Savage, Martin ^{[3
]}

机构：

[1] Univ Washington, Inst Nucl Theory, Seattle, WA 98195 USA

[2] Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theorie, D-53115 Bonn, Germany

[3] Univ Washington, Dept Phys, Seattle, WA 98195 USA

来源：

EUROPEAN PHYSICAL JOURNAL A | 2014年 / 50卷 / 09期

关键词：

LATTICE GAUGE-THEORIES; CONTINUUM-LIMIT; COSMIC-RAYS; SPECTRUM; COMPUTER; MODEL; QCD;

D O I：

10.1140/epja/i2014-14148-0

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Observable consequences of the hypothesis that the observed universe is a numerical simulation performed on a space-time lattice or grid are explored. The simulation scenario is first motivated by extrapolating current trends in computational resource requirements for lattice QCD into the future. Using the historical development of lattice gauge theory technology as a guide, we assume that our universe is an early numerical simulation and investigate potentially observable consequences. Among the observables that are considered are the muon g - 2 and the current differences between determinations of , but the most stringent bound on the inverse lattice spacing of the universe, GeV, is derived from the high-energy cut off of the cosmic ray spectrum. The numerical simulation scenario could reveal itself in the distributions of the highest-energy cosmic rays exhibiting a degree of rotational symmetry breaking that reflects the structure of the underlying lattice.

引用

页数：9

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