发表机构
Maynooth University; Stockholm University; KTH Royal Institute of Technology; University of Connecticut（梅努斯大学; 斯德哥尔摩大学; 皇家理工学院; 康涅狄格大学）
机构由 AI 辅助整理，请以论文原文为准。AI 中文总结
研究发现单个非磁性动力学杂质可在s波超导体中诱导亚间隙束缚态，给出弹性散射极限下束缚态能量的闭式解，且非弹性散射不影响其特征，还会产生实空间光谱权重降低区域。
AI 中文摘要
我们发现，单个非磁性动力学杂质（例如低频局域“声子”模式）会在s波超导体中诱导出亚间隙束缚态。在弹性散射极限下，我们得到了该束缚态能量作为声子频率的闭式解，在亚太赫兹区域，非弹性散射过程不会影响束缚态能量的显著特征。除了低频局域态密度中的亚间隙特征外，这类杂质还会在能隙峰外产生光谱权重降低的实空间区域。
英文摘要
We find that a single non-magnetic dynamical impurity (e.g., a low-frequency localized "vibron" mode) induces a subgap bound state in an s-wave superconductor. A closed-form solution for the bound state energy is found as a function of the vibron frequency in the elastic scattering limit, with the salient features of the bound state energies unaffected by inelastic scattering processes in the sub-THz regime. In addition to subgap features in the low-frequency local density of states, such impurities result in real space regions of reduced spectroscopic weight outside the gap peak.
CommentsMain document: 7 pages, 6 Figures. Supplement: 13 pages, 3 Figures
