In the context of analog gravity the Hawking effect can be generalized to domains outside astrophysics. Arguably, the most successful systems for this analogy have been so far the sonic and the optical ones. However, problems arise in the analog systems as their dispersive effects are too large to be ignored, and this in turn modifies the usual thermal spectrum of Hawking radiation. In this work we perform analytical and numerical studies on how the velocity profile modifies the Hawking temperature in dispersive media, including some with direct experimental application.

中文翻译：

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分散介质中的霍金温度：分析和数值

在模拟引力的背景下，霍金效应可以推广到天体物理学之外的领域。可以说，迄今为止，这种类比最成功的系统是声波和光学系统。然而，模拟系统中出现了问题，因为它们的色散效应太大而无法忽略，这反过来又改变了霍金辐射的常见热谱。在这项工作中，我们对速度剖面如何修改色散介质中的霍金温度进行了分析和数值研究，包括一些直接实验应用。