标题： 从IIB/F理论中的膨胀$α$-吸引子 显示英文标题

标题： Inflationary $α$-Attractor From Type IIB/F Theory

摘要： 我们在IIB/F理论的几何设定下，研究了三个相交的$D7$张量在$T^6/Z_N$类型的$CY_3$紧化中的慢滚膨胀的$\alpha=1/3$吸引子势。当额外打开开放弦模量的贡献时，发现动能极点的基本二次结构来源于凯勒势的修正。 虽然模谱的闭弦部分完全通过微扰和非微扰起源的量子修正得到稳定，但开弦部分在径向驱动膨胀方面发挥了主导作用。接近极点边界时，膨胀场的通用渐近行为在规范场空间中表现为慢滚平台，这成为决定宇宙参数普遍预测的原因。 我们发现，锥形区域附近的开弦存在实现了当前设定下的极点膨胀。最后，我们将我们的结果与其他类似模型进行比较，并讨论在当前和未来的宇宙学调查背景下精确探索$\alpha$值的重要性。 显示英文摘要

摘要： We derive an $\alpha=1/3$ - attractor potential of slow-roll inflation in the geometric set-up of three intersecting $D7$ branes under $T^6/Z_N$ type of $CY_3$-compactification within type IIB/F theory with some near-conifold regions. The underlying quadratic structure of the kinetic poles is found to arise from a correction in the K\"{a}hler potential when an extra contribution of open string moduli is turned on. While the closed string sector of the moduli spectrum is completely stabilized via quantum corrections of perturbative and non-perturbative origin, the open string sector plays the lead role in driving the inflationary expansion in the radial direction. A generic asymptotic behavior of the inflaton field near the pole boundaries manifests as the slow-roll plateau in canonical field space, which becomes responsible for giving universal predictions of the cosmological parameters. We find that the presence of the open strings near conifold regions brings the realization of pole inflation in the present set up. Finally we compare our results with similar models and discuss the importance of exploring precise values of $\alpha$ in the light of ongoing and forthcoming cosmological surveys.