Abstract：

We present a novel fiber inflationary scenario in Type IIB string compactifications, where a fiber modulus drives inflation via a scalar potential dominated by logarithmic corrections from string loops. Different from the BHP-conjectured loop correction, which are tied to D-brane/O-plane system, our correction derived from field-theoretic dimensional reduction, lift the fiber moduli by introducing a distinctive log enhanced term in the potential. The novel quantum correction terms create a flat potential region, enabling slow-roll inflation, consistent with current CMB data. Our results highlights how logarithmic quantum effects shape viable inflation models and give parameters control of various quantum corrections in the light of swampland conjecture. We also showed how the orientifold Calabi-Yau supporting such construction is constructed through computational algebra geometry.

报告人简介：

高昕，四川大学物理学院研究员。2008年本科毕业于北京师范大学物理学系，2014年博士毕业于中国科学院理论物理研究所。此后分别在美国弗吉尼亚理工大学，意大利罗马第二大学/INFN，德国海德堡大学理论物理研究所从事研究工作。他的研究领域主要集中在弦紧致化、弦宇宙学和卡拉比-丘流形。