走出沼泽：用F项缠绕暴胀回避弱引力猜想？
Winding out of the Swamp: Evading the Weak Gravity Conjecture with F-term Winding Inflation?
摘要：
我们提出了一个新的大场暴胀模型，沿着两个轴子场的场空间中的一个弯曲的轨迹，其中的“轴子”起源于在大的复杂结构的Calabi-Yau 3-fold的复杂结构模扇区。绕组的轨迹产生固定的一个组合的轴子的批量通量，并允许transplanckian有效的字段范围。暴胀子势来自于对几何的小的“瞬时”修正，并实现自然暴胀。通过在两个复结构模量的大复结构区域中工作，可以使暴胀子势次占优而无需剧烈调谐。我们还讨论了最近的transplanckian轴子周期性的“不去定理”对我们的工作的影响。有趣的是，我们的结构似乎实现了arXiv：1503.00795和arXiv：1503.04783中指出的一个漏洞：我们的结构是一个大场暴胀的弦论模型的候选者，它与弱引力猜想的温和形式相一致。
英文摘要：
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.
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