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arXiv 2109.03243hep-thastro-ph.COgr-qchep-ph
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D7-branes弦论中的混合暴胀和瀑布场

Hybrid inflation and waterfall field in string theory from D7-branes

Ignatios Antoniadis, Osmin Lacombe, George K. Leontaris

摘要:

我们提出了一个明确的字符串实现的宇宙膨胀的情况下,我们最近提出的IIB型通量紧致化的框架内存在三个磁化D7膜堆栈。暴胀发生在亚稳态的德西特真空周围。暴胀子是确定的体积模量,并有一个非常浅的最小值附近的最大值的潜力。暴胀的结束是由于“瀑布”场的存在,这些场驱动宇宙从附近的鞍点向全球最小值演化,可调真空能量描述了我们宇宙的现状。

英文摘要:

We present an explicit string realisation of a cosmological inflationary scenario we proposed recently within the framework of type IIB flux compactifications in the presence of three magnetised D7-brane stacks. Inflation takes place around a metastable de Sitter vacuum. The inflaton is identified with the volume modulus and has a potential with a very shallow minimum near the maximum. Inflation ends due to the presence of "waterfall" fields that drive the evolution of the Universe from a nearby saddle point towards a global minimum with tuneable vacuum energy describing the present state of our 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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