For an asymptotically flat hairy black hole in the Einstein-Maxwell-scalar (EMS) theory, we study the possibility of shedding off its scalar hair via nonlinear scalar perturbation fully interacting with the background spacetime. We examine the effect of the perturbation strength on the descalarization. The results show that the effective charge to mass ratio of the black hole plays the key role in the dynamical descalarization. The descalarization at the threshold is continuous. This indicates a second order phase transition.
@article{arxiv.2209.12117,
title = {Dynamical descalarization in Einstein-Maxwell-scalar theory},
author = {Chao Niu and Wei Xiong and Peng Liu and Cheng-Yong Zhang and Bin Wang},
journal= {arXiv preprint arXiv:2209.12117},
year = {2022}
}