Winding out of the Swamp: Evading the Weak Gravity Conjecture with F-term Winding Inflation?

Winding out of the Swamp: Evading the Weak Gravity Conjecture with F-term Winding Inflation?
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走出沼泽的缠绕:用F项缠绕膨胀规避弱引力猜想?

DOI:
10.1016/j.physletb.2015.07.026
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发表时间:
2015
期刊:
影响因子:
4.4
通讯作者:
L. T. Witkowski
L. T. Witkowski
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
A. Hebecker;P. Mangat;F. Rompineve;L. T. Witkowski

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我们提出了一种新的大场暴胀模型,沿着两个轴子场的场空间中的蜿蜒轨迹,其中“轴子”源自卡拉比-丘三重大复杂结构的复杂结构模扇区。缠绕轨迹由大通量固定轴子的一种组合产生,并允许跨普朗克有效场范围。暴胀势来自于对几何形状的微小“瞬时”修正,并实现了自然暴胀。通过在两个复杂结构模量的大型复杂结构体系中工作,无需严格调整即可使暴胀势成为次主导。我们还讨论了最近跨普朗克轴子周期性的“禁止定理”对我们工作的影响。有趣的是,我们的设置似乎实现了 arXiv:1503.00795 和 arXiv:1503.04783 中指出的一个漏洞:我们的构造是大场暴胀弦理论模型的候选者,该模型与轴子弱引力猜想的温和形式一致。
We present a new model of large field inflation along a winding trajectory in the field space of two axionic fields, where the “axions” originate from the complex structure moduli sector of a Calabi–Yau 3-fold at large complex structure. The winding trajectory arises from fixing one combination of axions by bulk fluxes and allows for a transplanckian effective field range. The inflaton potential arises from small “instantonic” corrections to the geometry and realises natural inflation. By working in a regime of large complex structure for two complex structure moduli the inflaton potential can be made subdominant without severe tuning. We also discuss the impact of the recent ‘no-go theorems’ for transplanckian axion periodicities on our work. Interestingly, our setup seems to realise a loophole pointed out in arXiv:1503.00795 and arXiv:1503.04783: our construction is a candidate for a string theory model of large field inflation which is consistent with the mild form of the weak gravity conjecture for axions.
场空间亚普朗克区域中的两场高尺度暴胀
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