$^4$ He中超攀位错的超输运：当所有维都重要时
Supertransport by Superclimbing Dislocations in $^4$He: When All Dimensions Matter
摘要：
在固体氦-4中观察到的独特的超流通过固体效应，归因于沿着位错核的准一维超流性，表现出两个非凡的特征：（i）通过适度增加压力对流动的指数强抑制，以及（ii）流速的不寻常的温度依赖性，与任何已知系统都不相似，并且与标准的Luttinger液体范例相矛盾。基于从头算和模型模拟，我们认为，这两个功能是密切相关的：超攀刃位错的形状的热波动诱导大，相关的，不对称的应力场作用于超流核。临界通量是最敏感的强烈罕见的波动，从而获得一个尖锐的温度依赖性在实验中观察到。
英文摘要：
The unique superflow-through-solid effect observed in solid Helium-4 and attributed to the quasi-one-dimensional superfluidity along the dislocation cores exhibits two extraordinary features: (i) an exponentially strong suppression of the flow by a moderate increase in pressure, and (ii) an unusual temperature dependence of the flow rate with no analogy to any known system and in contradiction with the standard Luttinger liquid paradigm. Based on ab initio and model simulations, we argue that the two features are closely related: Thermal fluctuations of the shape of a superclimbing edge dislocation induce large, correlated, and asymmetric stress fields acting on the superfluid core. The critical flux is most sensitive to strong rare fluctuations and hereby acquires a sharp temperature dependence observed in experiments.
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。
