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arXiv 0704.3201hep-ph
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膜世界宇宙学中的辅助混沌暴胀

Assisted chaotic inflation in brane-world cosmology

Grigoris Panotopoulos

摘要:

讨论了膜宇宙学中的辅助混沌暴胀。我们在Randall-Sundrum(RS)II模型的框架下工作,其中采用RS条件的唯一参数是五维普朗克质量。利用标量谱指数和标量扰动的振幅,我们确定了引起暴胀的标量场的质量和高维理论的基本普朗克质量。我们发现标量的质量具有混沌暴胀中暴胀子质量的典型值($M_I \sim 10^{13}$ GeV),而五维普朗克质量非常接近大统一理论(GUT)尺度($M_5 \sim (10^{16}-10^{17})$ GeV).此外,无论我们使用多少标量场,都不可能出现场值低于基本普朗克质量的混沌暴胀。

英文摘要:

Assisted chaotic inflation in brane cosmology is discussed. We work in the framework of Randall-Sundrum (RS) II model, in which adopting the RS condition the only parameter is the five-dimensional Planck mass. Using the scalar spectral index and the amplitude of scalar perturbations we determine both the mass of the scalar fields responsible for inflation and the fundamental Planck mass of the higher-dimensional theory. We find that the mass of the scalars has the typical value of the inflaton mass in chaotic inflation ($M_I \sim 10^{13}$ GeV) and that the five-dimensional Planck mass is very close to the GUT (Grand Unified Theories) scale ($M_5 \sim (10^{16}-10^{17})$ GeV). Furthermore, no matter how many scalar fields we use it is not possible to have chaotic inflation with field values below the fundamental Planck mass.

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