Evidence for violations of Weak Cosmic Censorship in black hole collisions in higher dimensions
Evidence for violations of Weak Cosmic Censorship in black hole collisions in higher dimensions
复制标题
DOI：
10.1007/jhep03(2022)111
复制
发表时间：
2020-11
影响因子：
5.4
通讯作者：
T. Andrade;P. Figueras;U. Sperhake
中科院分区：
文献类型：
--
作者：
T. Andrade;P. Figueras;U. Sperhake
我们研究了D= 6和7时空维度上具有非零碰撞参数的助推旋转黑洞的碰撞。我们发现存在一组开放的初始条件，使得碰撞的中间状态是一个具有哑铃状视界的黑洞，该视界不稳定到局部的gregory - laflamme型不稳定。我们能够提供令人信服的数值证据，证明这种不稳定性的演化导致视界在有限渐近时间内被掐掉，从而形成裸奇点，就像在类似的不稳定黑洞中一样。由于处于初始状态的黑洞是稳定的，这是在高维渐近平坦时空中违反弱宇宙审查猜想的第一个真正的一般证据。
We study collisions of boosted rotating black holes in D= 6 and 7 spacetime dimensions with a non-zero impact parameter. We find that there exists an open set of initial conditions such that the intermediate state of the collision is a black hole with a dumbbell-like horizon which is unstable to a local Gregory-Laflamme-type instability. We are able to provide convincing numerical evidence that the evolution of such an instability leads to a pinch off of the horizon in finite asymptotic time thus forming a naked singularity, as in similar unstable black holes. Since the black holes in the initial state are stable, this is the first genuinely generic evidence for the violation of the Weak Cosmic Censorship Conjecture in higher dimensional asymptotically flat spacetimes.