Weak equivalence principle from a spontaneously broken gauge theory of gravity

被引：7

作者：

Mielke, Eckehard W. ^{[1
]}

机构：

[1] Univ Autonoma Metropolitana Iztapalapa, Dept Fis, Mexico City 09340, DF, Mexico

来源：

PHYSICS LETTERS B | 2011年 / 702卷 / 04期

关键词：

Topological gravity; BF scheme; Spontaneous symmetry breaking; Equivalence principle; GENERAL-RELATIVITY; ASYMPTOTIC SAFETY; IDENTITIES; BREAKING;

D O I：

10.1016/j.physletb.2011.06.077

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Further consequences of a finite topological field theory for gravity based on the SL(5. R) gauge group are reported. After symmetry breaking, it induces four-dimensional Einstein spaces with a cosmological constant related to the tiny scale of the symmetry breaking. It is shown that not only a 'background' metric emerges from a Higgs-like mechanism, but also consistently the geodesic equation central to Einstein's equivalence principle. In next order of the symmetry breaking scale, the induced torsion could even provoke a tiny Lorentz violation. (c) 2011 Elsevier B.V. All rights reserved.

引用

页码：187 / 190

页数：4

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