Analogue gravity enables the study of fields on curved space–times in the laboratory. There are numerous experimental platforms in which amplification at the event horizon or the ergoregion has been observed. Here, we demonstrate how optically generating a defect in a polariton microcavity enables the creation of one- and two-dimensional, transsonic fluid flows. We show that this highly tuneable method permits the creation of horizons. Furthermore, we present a rotating geometry akin to the water-wave bathtub vortex. These experiments usher in the possibility of observing stimulated as well as spontaneous amplification by the Hawking, Penrose and Zeld’ovich effects in fluids of light. This article is part of a discussion meeting issue ‘The next generation of analogue gravity experiments’.

中文翻译：

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用于模拟重力物理的极化子流体


模拟引力使得在实验室中研究弯曲时空场成为可能。有许多实验平台都观察到事件视界或麦角区的放大。在这里，我们演示了如何在极化子微腔中光学产生缺陷来创建一维和二维跨音速流体流。我们证明这种高度可调的方法允许创建视野。此外，我们提出了类似于水波浴缸涡流的旋转几何形状。这些实验带来了观察光流体中霍金、彭罗斯和泽尔多维奇效应的受激放大和自发放大的可能性。本文是“下一代模拟重力实验”讨论会议问题的一部分。