arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2002.00148cond-mat.mes-hall
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Weyl轨道介导的非定域关联

Nonlocal Correlation Mediated by Weyl Orbits

Zhe Hou, Qing-Feng Sun

摘要:

非定域性是量子物理中一个有趣的话题,通常由一些独特的量子态介导。在这里,我们调查外尔半金属板,并发现一个异国情调的非局部相关效应时,放置两个势阱仅仅在顶部和底部表面。这种关联来自于Weyl半金属中的特殊Weyl轨道,并且是拓扑能带理论中的体边界对应的结果。进一步揭示了一个巨大的非局域输运信号和外尔费米子的体击穿,这可以作为实验验证这种非局域关联效应的签名。我们的结果扩展了非定域性家族中的一个新成员,并对设计具有奇特功能的新型电子器件具有潜在的应用价值。

英文摘要:

Nonlocality is an interesting topic in quantum physics and is usually mediated by some unique quantum states. Here we investigate a Weyl semimetal slab and find an exotic nonlocal correlation effect when placing two potential wells merely on the top and bottom surfaces. This correlation arises from the peculiar Weyl orbit in Weyl semimetals and is a consequence of the bulk-boundary correspondence in topological band theory. A giant nonlocal transport signal and a body breakdown by Weyl fermions are further uncovered, which can serve as signatures for verifying this nonlocal correlation effect experimentally. Our results extend a new member in the nonlocality family and have potential applications for designing new electric devices with fancy functions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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