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
影响因子:
4.4
通讯作者:
L. T. Witkowski
中科院分区:
文献类型:
--
作者:
A. Hebecker;P. Mangat;F. Rompineve;L. T. Witkowski
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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