论文标题
充电Q云和膨胀黑洞的强力效应
Strong gravity effects of charged Q-clouds and inflating black holes
论文作者
论文摘要
在本文中，我们重新检查了Q-clouds，围绕球形对称的静态黑洞。特别是，我们证明，对于固定的耦合常数，施瓦茨柴尔德黑洞周围存在两个不同的带电标量云的不同分支。以前没有注意到这一点。我们发现，新的解决方案在最大可能的量规耦合下具有“硬墙”。该壁将内部分开（包含黑洞地平线），其中标量场被困在“假真空”中，与“真真空”外部。当考虑到时空时，我们发现，在最大可能的背部反应下，与这两个分支相对应的黑洞溶液要么变成极端黑洞，因此在地平线上有不同的标量场导数，或者用第二个“宇宙学”地平线膨胀黑洞，而在第二个视野之外 - 在第二个视野之外 - 对应于极端重新reissner-nord-nord-nord-nordStrun-nord-nord-nord-nord-nord-nord-nord-nordStrour-nord-nord-nord-nord-nordStrour-nord-nord-nord-nordstrouth holes。
In this paper, we re-examine charged Q-clouds around spherically symmetric, static black holes. In particular, we demonstrate that for fixed coupling constants two different branches of charged scalar clouds exist around Schwarzschild black holes. This had not been noticed previously. We find that the new solutions possess a "hard wall" at maximal possible gauge coupling. This wall separates the interior (containing the black hole horizon), in which the scalar field is trapped in the "false vacuum", from the "true vacuum" exterior. When taking back-reaction onto the space-time into account, we find that at maximal possible back reaction, the black hole solutions corresponding to these two branches either become extremal black holes with diverging scalar field derivative on the horizon or inflating black holes with a second, "cosmological" horizon which - outside this second horizon - correspond to extremal Reissner-Nordström black holes.
