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arXiv 1909.04265cond-mat.str-el
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$ν=1/4$上分数量子霍尔态拓扑序的确定

Identification of topological order in the fractional quantum Hall state at $ν=1/4$

Ken K. W. Ma

摘要:

宽量子阱中四分之一填充分数量子霍尔态的性质仍在争论中。单分量非阿贝尔阶和双分量阿贝尔阶都被提出来描述系统。有趣的是,这些候选人在不同的条件下得到了不同实验的支持。在这篇文章中,我们集中在非阿贝尔订单的复合费米子和阿贝尔Halperin-(5,5,3)秩序之间的库珀配对。我们系统地讨论和预测不同的实验签名,以确定他们在未来的实验。特别是,我们解决的马赫-曾德尔干涉实验,并表明,它可以识别最近提出的22111部分子顺序。

英文摘要:

The nature of the fractional quantum Hall state at quarter filling in a wide quantum well is still under debate. Both one-component non-Abelian and two-component Abelian orders have been proposed to describe the system. Interestingly, these candidates received support from different experiments under disparate conditions. In this article, we focus on non-Abelian orders from Cooper pairing between composite fermions and the Abelian Halperin-(5,5,3) order. We discuss and predict systematically different experimental signatures to identify them in future experiment. In particular, we address the Mach-Zehnder interferometry experiment and show that it can identify the recently proposed 22111 parton order.

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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