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arXiv 0812.4596cond-mat.mes-hallcond-mat.str-el
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拓扑边和畴壁理论

A theory of topological edges and domain walls

F. A. Bais, J. K. Slingerland, S. M. Haaker

摘要:

我们调查域墙之间的拓扑有序的阶段在两个空间维度,并提出了一个简单但一般的框架,从他们的自由度可以理解。我们提出的方法利用拓扑对称性破缺,我们已经介绍和其他地方的结果。在总结该方法的基础上,我们给出了一些有代表性的例子中边缘激发谱和边缘输运的预测。这些包括域壁之间的阿贝尔和非阿贝尔拓扑相位Kitaev的蜂窝晶格模型在磁场,以及最近提出的域壁之间的自旋极化和非极化非阿贝尔分数量子霍尔态在不同的填充分数。

英文摘要:

We investigate domain walls between topologically ordered phases in two spatial dimensions and present a simple but general framework from which their degrees of freedom can be understood. The approach we present exploits the results on topological symmetry breaking that we have introduced and presented elsewhere. After summarizing the method, we work out predictions for the spectrum of edge excitations and for the transport through edges in some representative examples. These include domain walls between the Abelian and non-Abelian topological phases of Kitaev's honeycomb lattice model in a magnetic field, as well as recently proposed domain walls between spin polarized and unpolarized non-Abelian fractional quantum Hall states at different filling fractions.

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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