论文标题
量子重力点亮旋转黑洞
Quantum gravity lights up spinning black holes
论文作者
论文摘要
如果量子重力效应在移植曲率尺度上放置在黑洞中的量子效应通常是不可观察的。在这里，我们挑战了这一期望。几乎临界的自旋参数可以用作杠杆臂，将普朗克量子奖励效应转化为时空的全球变化：地平线溶解和黑洞“点亮”。我们研究了黑洞和无水平时空之间的这种过渡，并在添加量子重力效应时立即出现其他镜头特征。在存在吸积盘的情况下，除了指数堆叠的外部光子环组外，还出现了第二组内部光子环。内部和外部光子环将旋转参数的函数合并为类似于Cresent的特征。我们探讨了如何通过像事件地平线望远镜（Event Horizon Horizon Theescope）（如事件范围的望远镜）重建这些模拟图像。我们发现，未来的下一代事件地平线望远镜可能对其他镜头功能敏感。
Quantum-gravity effects in black holes are generally expected to be unobservable if they set in at transplanckian curvature scales. Here, we challenge this expectation. A near-critical spin parameter can serve as a lever arm that translates Planckian quantum-gravity effects to a global change in the spacetime: the horizon dissolves and the black hole "lights up". We investigate this transition between a black hole and a horizonless spacetime and find that additional lensing features appear instantaneously, when the quantum-gravity effect is added. In the presence of an accretion disk, a second set of internal photon rings appears in addition to the exponentially stacked set of external photon rings. The internal and external photon rings merge into cresent-like features as a function of increasing spin parameter. We explore how these simulated images would be reconstructed by a radio-very-long-baseline-interferometry array like the Event Horizon Telescope. We find that a future next-generation Event Horizon Telescope may be sensitive to the additional lensing features.
