Cosmology of dilatonic brane world

被引：1

作者：

Youm, D ^{[1
]}

机构：

[1] Int Ctr Theoret Phys, I-34014 Trieste, Italy

来源：

MODERN PHYSICS LETTERS A | 2001年 / 16卷 / 14期

关键词：

D O I：

10.1142/S0217732301004169

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We study cosmological solutions in the dilatonic brane world models. The effective four-dimensional equations on the brane are analyzed for the models with one positive tension brane and two branes with tensions of opposite signs. Just as in the non-dilatonic brane case, the conventional Friedmann equations of the four-dimensional universe are reproduced to the leading order in matter energy density for the model with one brane and the introduction of a radion potential is required in order to reproduce the Friedmann equations with the correct sign for the model with two branes.

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页码：937 / 945

页数：9

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