关于超流体与宇宙学类比的注记
A note on the analogy between superfluids and cosmology
摘要：
本文提出了超流系统与宇宙学之间的一个新的类比，它强烈依赖于以下成分：真空对声波量子的反作用。我们展示了如何存在的热声子，激发以上的量子真空$T> 0$，使我们能够推导出一个流体动力学方程，形式上类似于一个完美的流体在宇宙中服从弗里德曼-罗伯逊-沃克度规。
英文摘要：
A new analogy between superfluid systems and cosmology is here presented, which relies strongly on the following ingredient: the back-reaction of the vacuum to the quanta of sound waves. We show how the presence of thermal phonons, the excitations above the quantum vacuum for $T> 0$, enable us to deduce an hydrodynamical equation formally similar to the one obtained for a perfect fluid in a Universe obeying the Friedmann-Robertson-Walker metric.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
