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arXiv 1605.00570cond-mat.mes-hallcond-mat.str-elhep-thquant-ph
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$(2+1)$ -d量子反常霍尔态与$(3+1)$ -d拓扑绝缘体的全息对偶性

Holographic duality between $(2+1)$-d quantum anomalous Hall state and $(3+1)$-d topological insulators

Yingfei Gu, Ching Hua Lee, Xueda Wen, Gil Young Cho, Shinsei Ryu, Xiao-Liang Qi

摘要:

本文利用精确全息映射研究了$(2+1)$维量子反常霍尔态,即具有量子化霍尔电导的带绝缘体。精确全息映射是实现全息对偶性的一种方法,它将量子反常霍尔态映射到$(3+1)$维双曲空间中的另一个态。通过研究拓扑响应性质和纠缠谱,证明了量子反常霍尔态的全息对偶理论是一个$(3+1)$维拓扑绝缘体.这种对偶描述通过不同尺度下自由度之间的量子纠缠来刻画系统的拓扑性质。

英文摘要:

In this paper, we study $(2+1)$-dimensional quantum anomalous Hall states, i.e. band insulators with quantized Hall conductance, using the exact holographic mapping. The exact holographic mapping is an approach to holographic duality which maps the quantum anomalous Hall state to a different state living in $(3+1)$-dimensional hyperbolic space. By studying topological response properties and the entanglement spectrum, we demonstrate that the holographic dual theory of a quantum anomalous Hall state is a $(3+1)$-dimensional topological insulator. The dual description enables a new characterization of topological properties of a system by the quantum entanglement between degrees of freedom at different length scales.

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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