论文标题
对准模式的强宇宙审查制度有多笼统?
How general is the strong cosmic censorship bound for quasinormal modes?
论文作者
论文摘要
霍德的提议声称,黑洞的最小阻尼的准模式必须具有事件视野中表面重力的一半小于一半的假想部分。一般相对论中强的宇宙审查制度意味着这种结合必须较弱:凯奇(Cauchy Horizon)的表面重力的一半。一个有吸引力的问题是,这些界限是否仅受爱因斯坦理论的限制?在这里,我们将提供数值证据,表明一旦黑洞的大小要比宇宙学范围的半径小得多,HOD的建议和针对准模式的强宇宙审查都可以满足一般的球形对称性黑洞,这是在任意的重力理论中的一般对称的黑洞。低洼的准频率在该方案中具有普遍的行为,并且不取决于近距离的几何形状,而仅取决于渐近参数:宇宙常数和黑洞质量的值。
Hod's proposal claims that the least damped quasinormal mode of a black hole must have the imaginary part smaller than half of the surface gravity at the event horizon. The Strong Cosmic Censorship in General Relativity implies that this bound must be even weaker: half of the surface gravity at the Cauchy horizon. The appealing question is whether these bounds are limited by the Einstein theory only? Here we will present numerical evidence that once the black hole size is much smaller than then the radius of the cosmological horizon, both the Hod's proposal and the strong cosmic censorship bound for quasinormal modes are satisfied for general spherically symmetric black holes in an arbitrary metric theory of gravity. The low-lying quasinormal frequencies have the universal behavior in this regime and do not depend on the near-horizon geometry, but only on the asymptotic parameters: the value of the cosmological constant and black hole mass.