Laughlin's argument for the quantized thermal Hall effect

Ryota Nakai, Shinsei Ryu, Kentaro Nomura

研究成果: ジャーナルへの寄稿学術誌査読

15 被引用数 (Scopus)

抄録

We extend Laughlin's magnetic-flux-threading argument to the quantized thermal Hall effect. A proper analog of Laughlin's adiabatic magnetic-flux threading process for the case of the thermal Hall effect is given in terms of an external gravitational field. From the perspective of the edge theories of quantum Hall systems, the quantized thermal Hall effect is closely tied to the breakdown of large diffeomorphism invariance, that is, a global gravitational anomaly. In addition, we also give an argument from the bulk perspective in which a free energy, decomposed into its Fourier modes, is adiabatically transferred under an adiabatic process involving external gravitational perturbations.

本文言語英語
論文番号165405
ジャーナルPhysical Review B
95
16
DOI
出版ステータス出版済み - 4月 6 2017
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 電子材料、光学材料、および磁性材料
  • 凝縮系物理学

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