Induced gravity on intersecting brane worlds. II. Cosmology

被引：32
作者：
Corradini, Olindo [1 ,2 ]
Koyama, Kazuya [3 ]
Tasinato, Gianmassimo [4 ]
机构：
[1] Univ Bologna, Dipartimento Fis, I-40126 Bologna, Italy
[2] INFN, Sez Bologna, I-40126 Bologna, Italy
[3] Univ Portsmouth, Inst Cosmol & Gravitat, Portsmouth PO1 2EG, Hants, England
[4] UAM, CSIC, Fac Ciencias C 26, Inst Fis Teor, E-28049 Madrid, Spain
来源：
PHYSICAL REVIEW D | 2008年 / 78卷 / 12期
基金：
英国工程与自然科学研究理事会; 英国科学技术设施理事会;
关键词：
D O I：
10.1103/PhysRevD.78.124002
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We explore cosmology of intersecting brane worlds with induced gravity on the branes. We find the cosmological equations that control the evolution of a moving codimension-one brane and a codimension-two brane that sits at the intersection. We study the Friedmann equation at the intersection, finding new contributions from the six-dimensional bulk. These higher dimensional contributions allow us to find new examples of self-accelerating configurations for the codimension-two brane at the intersection and we discuss their features.
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页数：11
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