Electrical Probes of the Non-Abelian Spin Liquid in Kitaev Materials
Electrical Probes of the Non-Abelian Spin Liquid in Kitaev Materials
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DOI：
10.1103/physrevx.10.031014
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发表时间：
2020-07-17
影响因子：
12.5
通讯作者：
Alicea, Jason
中科院分区：
文献类型：
--
作者：
Aasen, David;Mong, Roger S. K.;Alicea, Jason
最近的热导率测量证明了Kitaev材料α-RuCl 3中磁场诱导的非阿贝尔自旋液相。虽然该平台是一个很好的莫特绝缘体，我们提出的实验，电探测自旋液体的标志性手性马约拉纳边缘状态和散装任意子，包括他们的异国情调的交换统计。我们专门介绍电路，利用电活性系统和Kitaev材料之间的接口，以“完美”转换电子从前者到新兴费米子在后者，从而使拓扑超导体和分数量子霍尔态发明的运输探针的变化。沿着的方式，我们解决了有关相互作用的马约拉纳费米子的文献中的难题，也开发了一个任意子干涉框架，其中包括非平凡的能量分割效应。我们的结果照亮了Kitaev材料的拓扑量子计算的部分途径。
Recent thermal-conductivity measurements evidence a magnetic-field-induced non-Abelian spin-liquid phase in the Kitaev material alpha-RuCl3. Although the platform is a good Mott insulator, we propose experiments that electrically probe the spin liquid's hallmark chiral Majorana edge state and bulk anyons, including their exotic exchange statistics. We specifically introduce circuits that exploit interfaces between electrically active systems and Kitaev materials to "perfectly" convert electrons from the former into emergent fermions in the latter-thereby enabling variations of transport probes invented for topological superconductors and fractional quantum-Hall states. Along the way, we resolve puzzles in the literature concerning interacting Majorana fermions, and also develop an anyon-interferometry framework that incorporates nontrivial energy-partitioning effects. Our results illuminate a partial pathway toward topological quantum computation with Kitaev materials.