AI 中文总结
该研究基于量子点多端约瑟夫森结，利用涌现几何对称性产生非平凡拓扑，通过点间耦合在门可调位置实现不同电荷的外尔节点与简并锥，提供光谱探测方案及器件设计原理。
AI 中文摘要
我们证明，一种涌现的几何对称性在基于量子点的多端约瑟夫森结中产生了非平凡拓扑。它将同自旋安德烈夫束缚态交叉限制在合成布里渊区的解析一维流形上，其中点间耦合在门可调位置分别选择单重态扇区中电荷为±1的外尔节点，以及双重态扇区中电荷为±2的双重简并锥。该机制提供了一种光谱探测方案，以及用于制造具有非平凡拓扑特征器件的设计原理。
英文摘要
We show that an emergent geometric symmetry generates non-trivial topology in quantum-dot-based multi-terminal Josephson junctions. It confines same-spin Andreev bound state crossings to an analytic one-dimensional manifold of the synthetic Brillouin zone, where interdot coupling selects Weyl nodes of charge $\pm1$ in the singlet sector and doubly degenerate cones of charge $\pm2$ in the doublet sector, at gate-tunable locations. The mechanism yields a spectroscopic detection protocol and a design principle for fabricating devices with non-trivial topological signatures.
Comments8 pages, 5 figures
