论文标题
部分可观测时空混沌系统的无模型预测
Vinen's latest thoughts on the "bump'' puzzle in decaying He II counterflow turbulence
论文作者
论文摘要
William F. Vinen（也称为Joe Vinen）在超氟氦气中的热逆流湍流中的开创性工作在很大程度上启动了量子湍流的研究。但是，尽管对该主题进行了数十年的研究，但仍有开放的问题要解决。一个这样的问题与反流湍流衰减期间涡流密度$ l（t）$的异常增加有关，这通常被称为$ l（t）$曲线上的``bump''。 2016年，Vinen及其同事开发了一个理论模型来解释这种令人困惑的现象（Jetp Letters，\ TextBf {103}，648-652（2016））。但是，他在生命的最后几年意识到，这个理论至少必须不足。为了纪念乔，我们在本文中讨论了他关于逆流动荡及其衰减的最新想法。我们还简要概述了有关此主题的最新实验和数值工作。
The pioneering work of William F. Vinen (also known as Joe Vinen) on thermal counterflow turbulence in superfluid helium-4 largely inaugurated the research on quantum turbulence. But despite decades of research on this topic, there are still open questions remaining to be solved. One such question is related to the anomalous increase of the vortex-line density $L(t)$ during the decay of counterflow turbulence, which is often termed as the ``bump'' on the $L(t)$ curve. In 2016, Vinen and colleagues developed a theoretical model to explain this puzzling phenomenon (JETP Letters, \textbf{103}, 648-652 (2016)). However, he realized in the last a few years of his life that this theory must be at least inadequate. In remembrance of Joe, we discuss in this paper his latest thoughts on counterflow turbulence and its decay. We also briefly outline our recent experimental and numerical work on this topic.
