近日，北京大学、西安交通大学等4所高校的研究人员在National Science Review上发表了一篇研究论文，提出一种实现non-Abelian braiding（实现拓扑量子计算的量子态重要特性）的新方法，证明拓扑绝缘子中广泛存在的Jackiw-Rebbi零模也支持此方法。
在这项工作中，研究人员在一个量子自旋绝缘体中成功构建了Jackiw-Rebbi零模，他们还证明在非超导情况下，Jackiw-Rebbi零模具有non-Abelian braiding特性。这对于实现非超导体系的拓扑量子计算具有重大意义。
Recently, in a research article published in National Science Review, researchers from four universities including Peking University and Xi'an Jiaotong University claimed a new method realizing non-Abelian braiding, which demonstrated that the Jackiw-Rebbi zero-modes widely existing in topological insulators also support non-Abelian braiding.
In this work, the researchers constructed Jackiw-Rebbi zero-modes in a quantum spin Hall insulator, and they also demonstrated that non-Abelian braiding properties are exhibited by Jackiw-Rebbi zero-modes in the absence of superconductivity. The authors believed that these results provide the possibility realizing topological quantum computation in a non-Majorana (non-superconductivity) system.
More information: Yijia Wu et al, Double-frequency Aharonov-Bohm effect and non-Abelian braiding properties of Jackiw-Rebbi zero-mode, National Science Review (2019). https://academic.oup.com/nsr/advance-article/doi/10.1093/nsr/nwz189/5637504
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