Radion cosmology and stabilization

被引：21
|
作者：
Chakraborty, Sumanta [1 ]
SenGupta, Soumitra [2 ]
机构：
[1] IUCAA, Pune 411007, Maharashtra, India
[2] Indian Assoc Cultivat Sci, Dept Theoret Phys, Kolkata 700032, India
来源：
EUROPEAN PHYSICAL JOURNAL C | 2014年 / 74卷 / 09期
关键词：
MASS HIERARCHY; DIMENSIONS;
D O I：
10.1140/epjc/s10052-014-3045-6
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We solve the Einstein equation in five-dimensional space-time for Randall-Sundrum Brane world model with time dependent radion field to study the variation of brane scale factor with time. We have shown that as the radion field decreases with time compactifying the extra dimension, the scale factor increases exponentially with time leading to an inflationary scenario. We have also proposed a time dependent generalization of the Goldberger-Wisemoduli stabilization mechanism to explain the time evolution of the radion field to reach a stable value, after which the scale factor on the brane exits from inflationary expansion.
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页数：9
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