Stationary vs. singular points in an accelerating FRW cosmology derived from six-dimensional Einstein-Gauss-Bonnet gravity

被引：54

作者：

Elizalde, E.

Makarenko, A. N.

Obukhov, V. V.

Osetrin, K. E.

Filippov, A. E.

机构：

[1] Univ Autonoma Barcelona, Fac Ciencias, CSIC, Inst Ciencias Espacio, Bellaterra 08193, Barcelona, Spain

[2] Univ Autonoma Barcelona, Fac Ciencias, CSIC, Inst Estudis Espacials Catalunya IEEC, Bellaterra 08193, Barcelona, Spain

[3] Tomsk State Pedagog Univ, Lab Fundamental Study, Tomsk 634041, Russia

来源：

PHYSICS LETTERS B | 2007年 / 644卷 / 01期

基金：

俄罗斯基础研究基金会;

关键词：

D O I：

10.1016/j.physletb.2006.11.031

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Six-dimensional Einstein-Gauss-Bormet gravity (with a linear Gauss-Bonnet term) is investigated. This theory is inspired by basic features of results coming from string and M-theory. Dynamical compactification is carried out and it is seen that a four-dimensional accelerating FRW universe is recovered, when the two-dimensional internal space radius shrinks. A non-perturbative structure of the corresponding theory is identified which has either three or one stable fixed points, depending on the Gauss-Bonnet coupling being positive or negative. A much richer structure than in the case of the perturbative regime of the dynamical compactification recently studied by Andrew, Bolen, and Middleton is exhibited. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：1 / 6

页数：6

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