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arXiv 1209.5883hep-thastro-ph.COgr-qchep-ph
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膜膨胀:背景超引力中的场论方法

Brane inflation: A field theory approach in background supergravity

Sayantan Choudhury, Supratik Pal

摘要:

我们在膜宇宙学的框架内提出了一个背景超引力驱动的暴胀模型。从体超引力出发,我们构造了膜上的暴胀子势,并利用它来研究暴胀范式的后果。为此,我们利用单圈辐射修正势,导出了膜暴胀中与标准宇宙学中的相应参数略有不同的重要参数的表达式。我们进一步估计了可观测参数,发现它们与最近的观测数据拟合得很好。我们已经广泛研究了再加热现象学,它通过与早期宇宙的粒子物理现象学有关的热引力子的产生来解释宇宙的热历史和轻生。

英文摘要:

We propose a model of inflation in the framework of brane cosmology driven by background supergravity. Starting from bulk supergravity we construct the inflaton potential on the brane and employ it to investigate for the consequences to inflationary paradigm. To this end, we derive the expressions for the important parameters in brane inflation, which are somewhat different from their counterparts in standard cosmology, using the one loop radiative corrected potential. We further estimate the observable parameters and find them to fit well with recent observational data. We have studied extensively reheating phenomenology, which explains the thermal history of the universe and leptogenesis through the production of thermal gravitino pertaining to the particle physics phenomenology of the early universe.

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。

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