Zhang Cheng-Yong, Chen Qian, Liu Yunqi, Luo Wen-Kun, Tian Yu, Wang Bin
Department of Physics and Siyuan Laboratory, Jinan University, Guangzhou 510632, China.
School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China.
Phys Rev Lett. 2022 Apr 22;128(16):161105. doi: 10.1103/PhysRevLett.128.161105.
We report a new black hole (BH) scalarization mechanism and disclose novel dynamical critical phenomena in the process of the nonlinear accretion of the scalar field into BHs. The accretion process can transform a seed BH into a final scalarized or bald BH, depending on the initial parameter of the scalar field p. There is a critical parameter p_{} and near it all intermediate solutions are attracted to a critical solution (CS) and stay there for a time scaling as T∝-γln|p-p_{}|. At late times, the solutions evolve into scalarized black holes (BHs) if p>p_{}, or bald BHs if p<p_{}. The final masses of the resulting scalarized-bald BHs satisfy power laws M_{p}-M_{±}∝|p-p_{}|^{γ_{±}}, where M_{±} are the masses of the scalarized and bald BHs, respectively, when p→p_{} from above or below, and γ_{±} the corresponding exponents.
我们报告了一种新的黑洞（BH）标量化机制，并揭示了标量场向黑洞非线性吸积过程中出现的新型动力学临界现象。吸积过程可以将一个初始黑洞转变为最终的标量化黑洞或裸黑洞，这取决于标量场p的初始参数。存在一个临界参数p*，在其附近所有中间解都会被吸引到一个临界解（CS），并在那里停留一段时间，其时间尺度为T∝-γln|p - p*|。在晚期，如果p>p*，解会演化为标量化黑洞（BHs），如果p<p*，则演化为裸黑洞。所得标量化 - 裸黑洞的最终质量满足幂律Mp - M±∝|p - p*|γ±，其中M±分别是当p从上方或下方趋近p*时标量化黑洞和裸黑洞的质量，γ±是相应的指数。
