论文标题

增强的$2π$ - 周期性aharonov-bohm效应,作为非本地测量探测的Majorana零模式的签名

Enhanced $2π$-periodic Aharonov-Bohm Effect as a Signature of Majorana Zero Modes Probed by Nonlocal Measurements

论文作者

Sugeta, Masayuki, Mizushima, Takeshi, Fujimoto, Satoshi

论文摘要

我们提出$2π$ - 周期性的Aharonov-bohm(AB)效应,作为Majorana零模式(MZM)的非本地探针,而无需限制费米昂奇偶校验。我们证明了AB效应的增强,其中MZM的拓扑保护产生了由MZMS在多个超导体正常金属连接处介导的放大和稳健的Andreev反射。我们研究了微不足道的结合状态的影响,并表明非局部指数比局部探针更明确地区分了微不足道和拓扑结合状态。

We propose the $2π$-periodic Aharonov-Bohm (AB) effect as a nonlocal probe of Majorana zero modes (MZMs) without the restriction of fermion parity. We demonstrate the enhancement of the AB effect, where the topological protection of MZMs yields amplified and robust Andreev reflection mediated by MZMs at multiple superconductor-normal metal junctions. We investigate the influence of trivial bound states and show that a nonlocal index enables a more explicit distinction between the trivial and topological bound states than local probes.

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