Phase diagram of the charged black hole bomb system
Phase diagram of the charged black hole bomb system
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DOI：
10.1007/jhep05(2021)189
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发表时间：
2021-03
影响因子：
5.4
通讯作者：
A. Davey;Ó. J. Dias;Paul Rodgers
中科院分区：
文献类型：
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作者：
A. Davey;Ó. J. Dias;Paul Rodgers
我们找到了带电黑洞炸弹系统解的相图。特别是，我们发现爱因斯坦-麦克斯韦-标量理论中的静态毛状黑洞被限制在闵可夫斯基盒子中。我们施加边界条件，使得标量场在恒定半径的腔体内部和外部消失。这些毛茸茸的黑洞渐近平坦，标量凝聚物漂浮在地平线上方。我们确定了四个关键的标量电荷，它们标志着相图定性特征的显着变化。当它们共存时，毛状黑洞总是比具有相同准局域质量和电荷的赖斯纳-诺德斯特伦黑洞具有更高的熵。因此，毛状黑洞是黑洞炸弹系统超辐射/近地平线不稳定性终点的自然候选者。我们还将多毛黑洞与该理论中的玻色子星联系起来。当视界半径限制为零时，毛状黑洞家族终止于玻色子星家族。最后，我们找到了限制标量凝聚所需的以色列盒子表面张量，并且它可以服从适当的能量条件。
We find the phase diagram of solutions of the charged black hole bomb system. In particular, we find the static hairy black holes of Einstein-Maxwell-Scalar theory confined in a Minkowski box. We impose boundary conditions such that the scalar field vanishes at and outside a cavity of constant radius. These hairy black holes are asymptotically flat with a scalar condensate floating above the horizon. We identify four critical scalar charges which mark significant changes in the qualitative features of the phase diagram. When they coexist, hairy black holes always have higher entropy than the Reissner-Nordström black hole with the same quasilocal mass and charge. So hairy black holes are natural candidates for the endpoint of the superradiant/near-horizon instabilities of the black hole bomb system. We also relate hairy black holes to the boson stars of the theory. When it has a zero horizon radius limit, the hairy black hole family terminates on the boson star family. Finally, we find the Israel surface tensor of the box required to confine the scalar condensate and that it can obey suitable energy conditions.