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arXiv 1105.4205hep-thgr-qc
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新引力场中BTZ黑洞的经典稳定性

Classical stability of BTZ black hole in new massive gravity

Yun Soo Myung, Yong-Wan Kim, Taeyoon Moon, Young-Jai Park

摘要:

研究了BTZ黑洞在新的大质量引力下的稳定性。这是一个不平凡的任务,因为BTZ黑洞背景周围的线性化方程是一个四阶微分方程。远离$m^2 l^2=1/2$的临界点,这个四阶方程被分裂成两个二阶方程:一个描述无质量的引力子,另一个是针对有质量的引力子设计的,后者可以由Fierz-Pauli作用量得到.在这种情况下,通过计算准正规模,证实了BTZ黑洞的稳定性。在临界点处,我们从对数共形场论导出了两个左右对数拟正规模。最后,我们通过传统的黑洞稳定性分析,识别出了在黑洞背景上传播的两个PDMATHAMN-质量模。

英文摘要:

We study the stability of the BTZ black hole in the new massive gravity. This is a nontrivial task because the linearized equation around the BTZ black hole background is a fourth order differential equation. Away from the critical point of $m^2 l^2=1/2$, this fourth order equation is split into two second order equations: one describes a massless graviton and the other is designed for a massive graviton, which could be obtained from the Fierz-Pauli action. In this case, calculating quasinormal modes leads to confirm the stability of the BTZ black hole. At the critical point, we derive two left and right logarithmic quasinormal modes from the logarithmic conformal field theory. Finally, we identify two $s$-massive modes propagating on the black hole background through the conventional black hole stability analysis.

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