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arXiv 1910.09474cond-mat.mes-hallcond-mat.str-el
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拓扑相费米零能束缚态的各向异性关联效应

Effects of anisotropic correlations in fermionic zero-energy bound states of topological phases

M. A. R. Griffith, E. Mamani, L. Nunes, H. Caldas

摘要:

物质的拓扑相一直被用来作为一个丰富的领域,深入讨论费米子分馏。在这项工作中,我们研究了各向异性超导关联在费米分数化的拓扑相位的影响。我们考虑一个混合版本的SSH和Kitaev模型与各向异性的超导序参量调查的不寻常的状态与零能量出现在一个有限的链。为了获得这些零能量解,我们构建了一个在链中间具有明确定义的畴壁的链。我们的解决方案表明一个有趣的动态之间的零能态畴壁和超导相关参数。最后,我们发现在链的两端存在一个孤立的Majorana是强烈依赖于在链的中间的孤子激发的存在。

英文摘要:

Topological phases of matter have been used as a fertile realm of intensive discussions about fermionic fractionalization. In this work, we study the effects of anisotropic superconducting correlations in the fermionic fractionalization on the topological phases. We consider a hybrid version of the SSH and Kitaev models with an anisotropic superconducting order parameter to investigate the unusual states with zero energy that emerges in a finite chain. To obtain these zero energy solutions, we built a chain with a well-defined domain wall at the middle of the chain. Our solutions indicate an interesting dynamic between the zero-energy state around the domain wall and the superconducting correlation parameters. Finally, we find that the presence of an isolated Majorana at the ends of the chain is strongly dependent on the existence of the solitonic excitation at the middle of the chain.

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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