Winding out of the Swamp: evading the weak gravity conjecture with \(F\)-term winding inflation?

DOI10.1016/J.PHYSLETB.2015.07.026zbMATH Open1345.83049arXiv1503.07912OpenAlexW2129824596WikidataQ123018469 ScholiaQ123018469MaRDI QIDQ316055

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Publication date: 26 September 2016

Published in: (Search for Journal in Brave)

Abstract: 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.

Full work available at URL: https://arxiv.org/abs/1503.07912

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