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Observation of interaction-induced modulations of a quantum Hall liquid’s area

Author

Listed:
  • I. Sivan

    (Braun Center for Submicron Research, Weizmann Institute of Science)

  • H. K. Choi

    (Braun Center for Submicron Research, Weizmann Institute of Science)

  • Jinhong Park

    (Braun Center for Submicron Research, Weizmann Institute of Science)

  • A. Rosenblatt

    (Braun Center for Submicron Research, Weizmann Institute of Science)

  • Yuval Gefen

    (Braun Center for Submicron Research, Weizmann Institute of Science)

  • D. Mahalu

    (Braun Center for Submicron Research, Weizmann Institute of Science)

  • V. Umansky

    (Braun Center for Submicron Research, Weizmann Institute of Science)

Abstract

Studies of electronic interferometers, based on edge-channel transport in the quantum Hall effect regime, have been stimulated by the search for evidence of abelian and non-abelian anyonic statistics of fractional charges. In particular, the electronic Fabry–Pérot interferometer has been found to be Coulomb dominated, thus masking coherent Aharonov–Bohm interference patterns: the flux trapped within the interferometer remains unchanged as the applied magnetic field is varied, barring unobservable modulations of the interference area. Here we report on conductance measurements indicative of the interferometer’s area ‘breathing’ with the variation of the magnetic field, associated with observable (a fraction of a flux quantum) variations of the trapped flux. This is the result of partial (controlled) screening of Coulomb interactions. Our results introduce a novel experimental tool for probing anyonic statistics.

Suggested Citation

  • I. Sivan & H. K. Choi & Jinhong Park & A. Rosenblatt & Yuval Gefen & D. Mahalu & V. Umansky, 2016. "Observation of interaction-induced modulations of a quantum Hall liquid’s area," Nature Communications, Nature, vol. 7(1), pages 1-9, November.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms12184
    DOI: 10.1038/ncomms12184
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    Cited by:

    1. Thomas Werkmeister & James R. Ehrets & Yuval Ronen & Marie E. Wesson & Danial Najafabadi & Zezhu Wei & Kenji Watanabe & Takashi Taniguchi & D. E. Feldman & Bertrand I. Halperin & Amir Yacoby & Philip , 2024. "Strongly coupled edge states in a graphene quantum Hall interferometer," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    2. Hwanchul Jung & Dongsung T. Park & Seokyeong Lee & Uhjin Kim & Chanuk Yang & Jehyun Kim & V. Umansky & Dohun Kim & H.-S. Sim & Yunchul Chung & Hyoungsoon Choi & Hyung Kook Choi, 2023. "Observation of electronic modes in open cavity resonator," Nature Communications, Nature, vol. 14(1), pages 1-8, December.

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