近日，北京大學、西安交通大學等4所高校的研究人員在National Science Review上發表了一篇研究論文，提出一種實現non-Abelian braiding（實現拓撲量子計算的量子態重要特性）的新方法，證明拓撲絕緣子中廣泛存在的Jackiw-Rebbi零模也支持此方法。
在這項工作中，研究人員在一個量子自旋絕緣體中成功構建了Jackiw-Rebbi零模，他們還證明在非超導情況下，Jackiw-Rebbi零模具有non-Abelian braiding特性。這對於實現非超導體系的拓撲量子計算具有重大意義。
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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