arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 2005.01507gr-qc
收藏

正则化四维带电Einstein-Gauss-Bonnet anti-deSitter黑洞中带电无质量标量扰动的线性不稳定性

Linear instability of charged massless scalar perturbation in regularized 4D charged Einstein-Gauss-Bonnet anti de-Sitter black holes

Peng Liu, Chao Niu, Cheng-Yong Zhang

摘要:

通过研究四维带电Einstein-Gauss-Bonnet-AdS黑洞的准正规模,研究了带电无质量标量扰动的线性不稳定性.我们发现超辐射是引发线性不稳定性的主要原因。随着高斯-博内耦合常数的增大或黑洞电荷的增加,带电无质量标量扰动变得更加不稳定。同时,减小AdS半径将使带电无质量标量微扰更加稳定。给出了参数空间$(α,Q,Λ)$中的稳定区域。此外,我们发现,带电无质量标量扰动是更不稳定的标量电荷越大。多极子的模态比双极子的模态稳定。

英文摘要:

We study the linear instability of the charged massless scalar perturbation in regularized 4D charged Einstein-Gauss-Bonnet-AdS black holes by exploring the quasinormal modes. We find that the linear instability is triggered by superradiance. The charged massless scalar perturbation becomes more unstable when increasing the Gauss-Bonnet coupling constant or the black hole charge. Meanwhile, decreasing} the AdS radius will make the charged massless scalar perturbation} more stable. The stable region in parameter space $(α,Q,Λ)$ is given. Moreover, we find that the charged massless scalar perturbation is more unstable for larger scalar charge. The modes of multipoles are more stable than that of the monopole.

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。

↑