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説明:

We electrically excite the incompressible region of a two-dimensional electron liquid in the fractional quantum
Hall state at 𝜈 = 2/3 and study optically probe the collective excitations in both the edge and bulk via photoluminescence spectral energy shifts. Applying a voltage pulse with an offset significantly enhances the excitation signal. Real space and time-resolved measurements reveal the dynamics of the bulk excitations, with estimated group velocity of approximately 3E+4 m/s.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: Edge states, Fractional quantum hall effect, Surface plasmons, Topological materials, GaAs, Time-resolved photoluminescence

刊行年月日: 2025-08-05

出版者: American Physical Society (APS)

掲載誌:

• Physical Review Letters (ISSN: 00319007) vol. 135 issue. 6 066203

研究助成金:

• Japan Society for the Promotion of Science 19H05603
• Japan Society for the Promotion of Science 21H05182
• Japan Society for the Promotion of Science 21H05188
• Japan Society for the Promotion of Science 24H00399
• Ministry of Education, Culture, Sports, Science and Technology

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1103/4bp5-9ryg

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更新時刻: 2025-08-27 16:30:20 +0900

MDRでの公開時刻: 2025-08-27 16:18:55 +0900