Inflation in models with large extra dimension driven by a bulk scaler field -: art. no. 105030

被引：92
|
作者：
Mohapatra, RN [1 ]
Pérez-Lorenzana, A
Pires, CAD
机构：
[1] Univ Maryland, Dept Phys, College Pk, MD 20742 USA
[2] Inst Politecn Nacl, Ctr Invest & Estudios Avanzados, Dept Fis, Mexico City 07000, DF, Mexico
来源：
PHYSICAL REVIEW D | 2000年 / 62卷 / 10期
关键词：
D O I：
10.1103/PhysRevD.62.105030
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We discuss inflation in models with large extra dimensions, driven by a bulk scalar field. The brane inflaton is then a single effective field, obtained from the bulk scalar field by scaling. The self-interaction terms of the effective brane inflaton are then naturally suppressed. The picture is consistent with a fundamental string scale in the TeV range without the problem of a superlight inflaton. If hybrid inflation is considered, the right prediction for the density perturbations as observed by the Cosmic Background Explorer san be obtained without any fine-tuning. The bulk inflaton then decays preferentially into brane Higgs fields and reheating follows.
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页码：1 / 6
页数：6
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