Quantum speedup in noninertial frames Kai Xu, Han-Jie Zhu, Guo-Feng Zhang, Jie-Ci Wang and Wu-Ming Liu Eur. Phys. J. C, 80 5 (2020) 462 Published online: 22 May 2020 DOI: 10.1140/epjc/s10052-020-8048-x