Holevo bound of entropic uncertainty in Schwarzschild spacetime Jin-Long Huang, Wen-Cong Gan, Yunlong Xiao, Fu-Wen Shu and Man-Hong Yung Eur. Phys. J. C, 78 7 (2018) 545 Published online: 03 July 2018 DOI: 10.1140/epjc/s10052-018-6026-3