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arXiv · 2204.09260

Dynamical transitions in scalarization and descalarization through black hole accretion

Cheng-Yong Zhang·Qian Chen·Yunqi Liu·Wen-Kun Luo·Yu Tian·Bin Wang
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Abstract

We present the first fully nonlinear study on the accretion of scalar fields onto a seed black hole in anti-de Sitter spacetime in Einstein-Maxwell-scalar theory. Intrinsic critical phenomena in the dynamical transition between the bald and scalarized black holes are disclosed. In scalarizations, the transition is discontinuous and a metastable black hole acts as an attractor at the threshold. We construct a new physical mechanism to dynamically descalarize an isolated scalarized black hole. The first results on critical phenomena in descalarizations are revealed. The dynamical descalarizations can be either discontinuous or continuous at the threshold, distinguished by whether or not an attractor appears.

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Cheng-Yong Zhang, Qian Chen, Yunqi Liu, Wen-Kun Luo, Yu Tian, Bin Wang. 2022-04-20. Dynamical transitions in scalarization and descalarization through black hole accretion. https://doi.org/10.1103/physrevd.106.l061501

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