arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2109.06901gr-qchep-th
收藏

多毛黑共振子和AdS $_4$超辐射不稳定性

Hairy black resonators and the AdS$_4$ superradiant instability

Paul M. Chesler

摘要:

通过数值求解3 + 1维Einstein方程,研究了Kerr-AdS黑洞的超辐射不稳定性.我们发现,超辐射不稳定性的结果在两个阶段的过程中,具有不同的初始和二次不稳定性。在次级不稳定性的末端,几何结构以几个不同的基频振荡--一个多重振荡的黑洞。多振荡的黑洞非常接近黑色共振器,尽管有一点引力毛发。在多毛黑共振时期,视界面积的演化与常数的指数接近一致。通过采用不同的种子扰动的初始克尔AdS几何,我们也证明了黑色谐振器的头发是不唯一的。在双量子场论的描述中,旋转不变性被自发地破坏,并且在某些区域能量密度为负,这表明物质的奇异状态不会松弛到静止构型。

英文摘要:

The superradiant instability of Kerr-AdS black holes is studied by numerically solving the full 3+1 dimensional Einstein equations. We find that the superradiant instability results in a two stage process with distinct initial and secondary instabilities. At the end of the secondary instability the geometry oscillates at several distinct fundamental frequencies -- a multi-oscillating black hole. The multi-oscillating black hole is remarkably close to a black resonator, albeit with a bit of gravitational hair. During the hairy black resonator epoch, the evolution of the horizon area is consistent with the exponential approach to a constant. By employing different seed perturbations in the initial Kerr-AdS geometry, we also demonstrate that the black resonator's hair is not unique. In the dual quantum field theory description, rotation invariance is spontaneously broken and the energy density is negative in some regions, signaling an exotic state of matter which does not relax to a stationary configuration.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑