论文标题
分散媒体中的超级频谱的估计
Estimate of the superradiance spectrum in dispersive media
论文作者
论文摘要
2016年，诺丁汉集团检测到旋转超高光谱效应。虽然该实验证明了超级后期过程的鲁棒性，但由于实验中阶段的许多影响，它仍然缺乏完整的理论描述。在本文中，我们通过通过WKB分析得出色散状态中反射系数的估计来为该实验提供新的启示。该估计值用于评估诺丁汉实验中反旋转模式的反射系数。我们的发现表明，与旋转黑洞的事件范围相反，超级实验中的涡流流并非纯粹吸收。尽管该结果增加了这种实验性涡旋流量与旋转黑洞之间的差距，但实际上，这种差距实际上是新思想的来源。
In 2016, the Nottingham group detected the rotational superradiance effect. While this experiment demonstrated the robustness of the superradiance process, it still lacks a complete theoretical description due to the many effects at stage in the experiment. In this paper, we shine new light on this experiment by deriving an estimate of the reflection coefficient in the dispersive regime by means of a WKB analysis. This estimate is used to evaluate the reflection coefficient spectrum of counter rotating modes in the Nottingham experiment. Our finding suggests that the vortex flow in the superradiance experiment was not purely absorbing, contrary to the event horizon of a rotating black hole. While this result increases the gap between this experimental vortex flow and a rotating black hole, it is argued that it is in fact this gap that is the source of novel ideas.
