Speaker
Junyi Cheng
Description
Studies of axion effective theories in the type IIB Calabi-Yau landscape have revealed that hierarchies in geometric volumes drive correlations between axion physics and the number of axions in a given model. We provide evidence that distributions of appropriately normalized divisor volumes in the toric hypersurface Calabi-Yau threefolds are universal across this landscape. Furthermore, we show that divisor volumes are the most relevant data to approximate string-derived axion effective theories. Finally, we propose a simple model for the spectrum of normalized divisor volumes and use this model to reproduce results on axion masses and decay constants across the Kreuzer-Skarke axiverse.
