arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0906.4848hep-th
收藏

Randall-Sundrum 2-膜模型的混沌暴胀

Chaotic inflation on the Randall-Sundrum 2-brane model

Kourosh Nozari, Siamak Akhshabi

摘要:

我们在Randall-Sundrum I(RSI)膜上构造了一个暴胀模型,其中大量的标量场稳定了膜间的分离。我们研究了体标量场对膜上暴胀动力学的影响。我们在两种不同的方法进行:在第一种方法中,稳定场势直接出现在弗里德曼方程中,由此产生的情况是有效的两个领域的通货膨胀。在第二种方法中的稳定机制被认为是在一个翘曲因子的上下文中,使只有一个字段目前,扮演的角色都暴胀和稳定剂。我们研究了从最近的观察模型参数施加的约束。

英文摘要:

We construct an inflation model on the Randall-Sundrum I (RSI) brane where a bulk scalar field stabilizes the inter-brane separation. We study impact of the bulk scalar field on the inflationary dynamics on the brane. We proceed in two different approaches: in the first approach, the stabilizing field potential is directly appeared in the Friedmann equation and the resulting scenario is effectively a two-field inflation. In the second approach the stabilization mechanism is considered in the context of a warp factor so that there is just one field present that plays the roles of both inflaton and stabilizer. We study constraints imposed on the model parameters from recent observations.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑