Josephson 结 ladder 中的紧凑定向通量子
超导电性
2025-11-25 v1 斑图形成与孤子
摘要
我们展示了定向紧凑通量子配置是感电耦合且直流偏置的Josephson结 ladder的精确解。这类状态在由标准离散正弦-洛伦兹方程描述的平行Josephson结阵列中不存在。我们指出，存在紧凑通量子和多通量子态，这些态要么满足上下对称性，要么为非对称。对称态在其拓扑电荷为偶数时能量为零，而非对称态始终具有零能量。 Depending on the anisotropy constant, the compact fluxons can either coexist with the non-compact states or only compact states are possible. External magnetic field prevents compact state existence.
引用
@article{arxiv.2511.19215,
title = {Compact stationary fluxons in the Josephson junction ladder},
author = {Andrii O. Prykhodko and Ivan O. Starodub and Yaroslav Zolotaryuk},
journal= {arXiv preprint arXiv:2511.19215},
year = {2025}
}
备注
9 pages, 9 figures