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A quantized microwave quadrupole insulator with topologically protected corner states

Author

Listed:
  • Christopher W. Peterson

    (University of Illinois at Urbana-Champaign)

  • Wladimir A. Benalcazar

    (University of Illinois at Urbana-Champaign)

  • Taylor L. Hughes

    (University of Illinois at Urbana-Champaign)

  • Gaurav Bahl

    (University of Illinois at Urbana-Champaign)

Abstract

A quantized quadrupole topological insulator composed of capacitively coupled microwave resonators has corner states that are protected by bulk topology and exhibit exceptional robustness against edge deformation.

Suggested Citation

  • Christopher W. Peterson & Wladimir A. Benalcazar & Taylor L. Hughes & Gaurav Bahl, 2018. "A quantized microwave quadrupole insulator with topologically protected corner states," Nature, Nature, vol. 555(7696), pages 346-350, March.
    • Handle: RePEc:nat:nature:v:555:y:2018:i:7696:d:10.1038_nature25777
    DOI: 10.1038/nature25777
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    Citations

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    Cited by:

    1. Guoqiang Xu & Xue Zhou & Shuihua Yang & Jing Wu & Cheng-Wei Qiu, 2023. "Observation of bulk quadrupole in topological heat transport," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    2. Sasha S. Yamada & Tianhe Li & Mao Lin & Christopher W. Peterson & Taylor L. Hughes & Gaurav Bahl, 2022. "Bound states at partial dislocation defects in multipole higher-order topological insulators," Nature Communications, Nature, vol. 13(1), pages 1-8, December.
    3. Jin Ming Koh & Tommy Tai & Ching Hua Lee, 2024. "Realization of higher-order topological lattices on a quantum computer," Nature Communications, Nature, vol. 15(1), pages 1-14, December.
    4. Deyuan Zou & Tian Chen & Wenjing He & Jiacheng Bao & Ching Hua Lee & Houjun Sun & Xiangdong Zhang, 2021. "Observation of hybrid higher-order skin-topological effect in non-Hermitian topolectrical circuits," Nature Communications, Nature, vol. 12(1), pages 1-11, December.
    5. Weiwei Zhu & Haoran Xue & Jiangbin Gong & Yidong Chong & Baile Zhang, 2022. "Time-periodic corner states from Floquet higher-order topology," Nature Communications, Nature, vol. 13(1), pages 1-6, December.
    6. Matthew Weiner & Xiang Ni & Andrea Alù & Alexander B. Khanikaev, 2022. "Synthetic Pseudo-Spin-Hall effect in acoustic metamaterials," Nature Communications, Nature, vol. 13(1), pages 1-7, December.
    7. Mehmet Berkay On & Farshid Ashtiani & David Sanchez-Jacome & Daniel Perez-Lopez & S. J. Ben Yoo & Andrea Blanco-Redondo, 2024. "Programmable integrated photonics for topological Hamiltonians," Nature Communications, Nature, vol. 15(1), pages 1-8, December.
    8. Haoran Xue & Z. Y. Chen & Zheyu Cheng & J. X. Dai & Yang Long & Y. X. Zhao & Baile Zhang, 2023. "Stiefel-Whitney topological charges in a three-dimensional acoustic nodal-line crystal," Nature Communications, Nature, vol. 14(1), pages 1-8, December.
    9. Weixuan Zhang & Fengxiao Di & Xingen Zheng & Houjun Sun & Xiangdong Zhang, 2023. "Hyperbolic band topology with non-trivial second Chern numbers," Nature Communications, Nature, vol. 14(1), pages 1-9, December.

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