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arXiv 1609.06407cond-mat.mes-hallcond-mat.str-elquant-ph
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固态系统中的Majorana模及其动力学

Majorana modes in solid state systems and its dynamics

Qi Zhang, Biao Wu

摘要:

本文综述了粒子物理中Majorana费米子的性质,指出Majorana模在固态系统中是有显著不同的。其关键原因是固态系统中的反粒子概念与粒子物理学中的反粒子概念不同。我们将Majorana模定义为Majorana算子的本征态,并发现它们既可以存在于边缘,也可以存在于本体中。根据我们的定义,在一个系统中,无论是在边缘还是在体中,都只能存在一个单一的Majorana模。Kitaev的无自旋$p$波超导体被用来说明我们的结果和Majorana模式的动力学行为。

英文摘要:

We review the properties of Majorana fermions in particle physics and point out that Majorana modes in solid state systems are significantly different. The key reason is the concept of anti-particle in solid state systems is different from its counterpart in particle physics. We define Majorana modes as the eigenstates of Majorana operators and find that they can exist both at edges and in the bulk. According to our definition, only one single Majorana mode can exist in a system no matter at edges or in the bulk. Kitaev's spinless $p$-wave superconductor is used to illustrate our results and the dynamical behavior of the Majorana modes.

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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