arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1104.2623hep-thgr-qc
收藏

临界引力下黑洞的稳定性

On Black Hole Stability in Critical Gravities

Haishan Liu, H. Lu, Mingxing Luo

摘要:

本文考虑了在不同维中具有Ricci张量和标量平方项的广义宇宙引力。这些理论承认爱因斯坦度规的解,包括在临界点质量和熵都消失的史瓦西-唐格里尼AdS黑洞。我们进行线性分析周围的黑洞,并表明,在一般的频谱包括通常的自旋2质量和鬼质量模式。我们证明了在黑洞中不存在指数增长的快子模。在临界点处,无质量的自旋-2模式具有零能量,而有质量的自旋-2模式被对数模式取代。总存在着某种负能量的无质量模和对数模的线性组合。因此,黑洞的稳定性要求对数模被边界条件截断。

英文摘要:

We consider extended cosmological gravities with Ricci tensor and scalar squared terms in diverse dimensions. These theories admit solutions of Einstein metrics, including the Schwarzschild-Tangherlini AdS black holes, whose mass and entropy vanish at the critical point. We perform linearized analysis around the black holes and show that in general the spectrum consists of the usual spin-2 massless and ghost massive modes. We demonstrate that there is no exponentially-growing tachyon mode in the black holes. At the critical point, the massless spin-2 modes have zero energy whilst the massive spin-2 modes are replaced by the log modes. There always exist certain linear combination of massless and log modes that has negative energy. Thus the stability of the black holes requires that the log modes to be truncated out by the boundary condition.

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。

↑