Kavli Affiliate: Yuji Tachikawa | First 5 Authors: Yuji Tachikawa, Hao Y. Zhang, , , | Summary: We show that the low-energy effective actions of two ten-dimensional supersymmetric heterotic strings are different by a $mathbb{Z}_3$-valued discrete topological term even after we turn off the $E_8times E_8$ and $Spin(32)/mathbb{Z}_2$ gauge fields. This will be demonstrated by […]
Continue.. On a $mathbb{Z}_3$-valued discrete topological term in 10d heterotic string theories