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arXiv 2301.12552cond-mat.supr-con
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双层中的手性约瑟夫森效应:粒子-空穴对偶性的作用

Chiral Josephson effect in double layers: the role of particle-hole duality

Klaus Ziegler

AI总结:

本文利用粒子-空穴对偶关系研究手性金属双层中的层间s波约瑟夫森效应,揭示超流耦合解除零能量模简并,并阐明两类双层系统电流分布相同但零能量模不同的机制。

摘要:

本文考虑了两个手性金属双层中,层间s波配对的约瑟夫森效应。我们利用电子-电子双层与电子-空穴双层之间的对偶关系,讨论了畴壁处的零能量本征模及其与超流态的耦合。该耦合通过准粒子流和超流来描述。结果表明,零能量本征模的简并性通过与超流的耦合得以解除。电子-电子双层与电子-空穴双层之间的对偶关系导致两个系统中具有相同的电流分布,但零能量模不同。

英文摘要:

The Josephson effect of inter-layer s-wave pairing in a double layer of two chiral metals is considered. We employ the duality relation between electron-electron and electron-hole double layers to discuss the zero-energy eigenmodes at a domain wall and their coupling to the superfluid state. This is described in terms of the quasiparticle current and the supercurrent. It turns out that the degeneracy of the zero-energy eigenmodes is resolved by the coupling to the supercurrent. The duality relation between the electron-electron and electron-hole double layers leads to the same current distribution in both systems but to different zero-energy 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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