Quantized Charge Polarization as a Many-Body Invariant in (2+1)D Crystalline Topological States and Hofstadter Butterflies

Y. Zhang,Naren Manjunath,Gautam Nambiar,Maissam Barkeshli

Physical Review X（2023）

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摘要

A theoretical analysis shows that a quantized charge polarization is well-defined in an insulator with a magnetic field and nonzero quantized Hall conductance, offering an inroad to a deeper understanding of crystalline topological phases.

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关键词

charge polarization,crystalline topological states,many-body

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