Superfluid Edge Dislocation: Transverse Quantum Fluid
Superfluid Edge Dislocation: Transverse Quantum Fluid
复制标题
超流体边缘位错：横向量子流体
DOI：
10.1103/physrevlett.131.196001
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发表时间：
2023
影响因子：
8.6
通讯作者：
Svistunov, Boris
中科院分区：
文献类型：
--
作者：
Radzihovsky, Leo;Kuklov, Anatoly;Prokof’ev, Nikolay;Svistunov, Boris
最近，有人认为[Kuklovet等人，物理修订信函128，255301（2022）PRLTAO 0031 -900710.1103/PhysRevLett.128.255301]认为，在固体中观察到的与超流穿固体效应相关的不寻常特征可以用超流刃位错的稀分布的独特性质来解释。我们证明了由量子相位滑移（瞬子）控制的超流的稳定性，以及超流位错的其他奇异的红外特性很容易从一维量子液体中得到，该量子液体的特点是具有有效的无限压缩性（在没有Peierls势的情况下）与刃位错的爬升能力相关。这建立了一类新的准一维超流体状态，尽管它们的维度保持稳定和长程有序。我们的理论与现有的实验数据是一致的，我们提出了一个实验来测试的质量-电流-压力特性的预测。
Recently, it was argued [Kuklovet al., Phys. Rev. Lett. 128, 255301 (2022)PRLTAO0031-900710.1103/PhysRevLett.128.255301] that unusual features associated with the superflow-through-solid effect observed in solidcan be explained by unique properties of dilute distribution of superfluid edge dislocations. We demonstrate that stability of supercurrents controlled by quantum phase slips (instantons), and other exotic infrared properties of the superfluid dislocations readily follow from a one-dimensional quantum liquid distinguished by an effectively infinite compressibility (in the absence of Peierls potential) associated with the edge dislocation’s ability to climb. This establishes a new class of quasi-one-dimensional superfluid states that remain stable and long-range ordered despite their dimensionality. Our theory is consistent with the existing experimental data, and we propose an experiment to test the mass-current–pressure characteristic prediction.