标题： 一些色散视界方面的内容：来自表面波的启示 显示英文标题

标题： Some aspects of dispersive horizons: lessons from surface waves

摘要： 在运动背景流上传播的水动力表面波会经历一个有效的弯曲时空。 我们讨论了重力波和毛细-重力波的实验，其中我们研究了水动力黑洞/白洞视界以及穿越它们的可能性。 这种穿越的可能性是由于与一个额外的“蓝”视界相互作用引起的，这个视界来自于在低频重力波理论中包含表面张力。 这种相互作用导致了一个色散尖点，在此之后两个视界完全消失。 我们推测高频“超光速”修正可能是类似引力系统的一个普遍特征，并讨论了它们对于超越普朗克尺度问题的相关性。 我们还讨论了艾里干涉在将入射波与流动背景（有效时空）混合以及模糊黑洞/白洞视界位置中的作用。 显示英文摘要

摘要： Hydrodynamic surface waves propagating on a moving background flow experience an effective curved space-time. We discuss experiments with gravity waves and capillary-gravity waves in which we study hydrodynamic black/white-hole horizons and the possibility of penetrating across them. Such possibility of penetration is due to the interaction with an additional "blue" horizon, which results from the inclusion of surface tension in the low-frequency gravity-wave theory. This interaction leads to a dispersive cusp beyond which both horizons completely disappear. We speculate the appearance of high-frequency "superluminal" corrections to be a universal characteristic of analogue gravity systems, and discuss their relevance for the trans-Planckian problem. We also discuss the role of Airy interference in hybridising the incoming waves with the flowing background (the effective spacetime) and blurring the position of the black/white-hole horizon.