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arXiv 0912.1397hep-th
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弦论中的多场暴胀

Multi-Field Inflation from String Theory

Per Berglund, Guoqin Ren

摘要:

我们构造了一个由IIB型弦紧化在大体积极限下的多重Kähler模量组成的多场暴胀模型。该模型由重场和轻场组成,前者在暴胀期间被冻结,后者充当暴胀子。我们研究了膨胀期间和膨胀后所有场的演化,直到所有场在真空期望值附近振荡的预热时代。我们的数值分析表明,曲率扰动与$n_s \simeq 0.96$具有几乎尺度不变的功率谱。

英文摘要:

We construct a multi-field inflationary model consisting of multiple Kähler moduli derived from type IIB string compactification in the large volume limit. The model consists of both heavy and light fields, with the former being frozen during the inflationary period and the latter acting as the inflaton(s). We study the evolution of all the fields during and after inflation until the preheating era when all the fields oscillate around their vacuum expectation values. Our numerical analysis shows that the curvature perturbations have an almost scale invariant power spectrum with $n_s \simeq 0.96$.

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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