Near-horizon BF bounds for the $t^{+}$ KK tower on extremal AdS${}_5$ black holes

Xiao-Long Liu, Zheng Miao, Yuezhang Tang

We study the charged Breitenlohner--Freedman (BF) bound for all horizon harmonics of the type IIB $t^{+}$ Kaluza--Klein tower on extremal charged AdS${}_5$ black holes with equal rotat…