Kaluza-Klein cosmology from five-dimensional Lovelock-Cartan theory

被引：21
作者：
Castillo-Felisola, Oscar [1 ,2 ]
Corral, Cristobal [1 ,2 ]
del Pino, Simon [3 ]
Ramirez, Francisca [1 ]
机构：
[1] Univ Tecn Federico Santa Maria, Dept Fis, Casilla 110-V, Valparaiso, Chile
[2] Ctr Cient Tecnol Valparaiso, Casilla 110-V, Valparaiso, Chile
[3] Pontificia Univ Catolica Valparaiso, Inst Fis, Valparaiso 4059, Chile
来源：
PHYSICAL REVIEW D | 2016年 / 94卷 / 12期
关键词：
GENERAL-RELATIVITY; DARK-MATTER; GRAVITY; INVARIANCE; TORSION; TENSOR;
D O I：
10.1103/PhysRevD.94.124020
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We study the Kaluza-Klein dimensional reduction of the Lovelock-Cartan theory in five-dimensional spacetime, with a compact dimension of S-1 topology. We find cosmological solutions of the Friedmann-Robertson-Walker class in the reduced spacetime. The torsion and the fields arising from the dimensional reduction induce a nonvanishing energy-momentum tensor in four dimensions. We find solutions describing expanding, contracting, and bouncing universes. The model shows a dynamical compactification of the extra dimension in some regions of the parameter space.
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页数：12
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