慢滚地球膨胀的全息研究
On Slow-roll Glueball Inflation from Holography
摘要：
我们通过规范/引力对偶的方法研究胶球暴胀模型的建立。为此，我们考虑了IIB型超引力的一个5维一致截断。这个理论承认一个解决方案，其度量的形式是一个$dS_4$纤维在第五维。我们发现一个新的时间依赖性的变形在这个解决方案，它允许一个小的$η$参数相应的暴胀模型。这解决了先前解决方案的问题，该先前解决方案仅允许一阶的$η$，因此仅给出超慢滚状态，而不是常规的慢滚。
英文摘要：
We investigate glueball inflation model-building via the methods of the gauge/gravity duality. For that purpose, we consider a certain 5d consistent truncation of type IIB supergravity. This theory admits a solution, whose metric is of the form of a $dS_4$ fibration over a fifth dimension. We find a new time-dependent deformation around this solution, which allows for a small $η$ parameter of the corresponding inflationary model. This resolves a problem with a previous solution that allowed only $η$ of order one and thus gave only an ultra-slow roll regime, but not regular slow roll.
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