| Autor: |
J. Nakamura, S. Liang, G. C. Gardner, M. J. Manfra |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Physical Review X, Vol 13, Iss 4, p 041012 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2160-3308 |
| DOI: |
10.1103/PhysRevX.13.041012 |
| Popis: |
Electronic Fabry-Pérot interferometry is a powerful method to probe quasiparticle charge and anyonic braiding statistics in the fractional quantum Hall regime. We extend this technique to the hierarchy ν=2/5 fractional quantum Hall state, possessing two edge modes that in our device can be interfered independently. The outer edge mode exhibits interference similar to the behavior observed at the ν=1/3 state, indicating that the outer edge mode at ν=2/5 has properties similar to the single mode at ν=1/3. The inner mode shows an oscillation pattern with a series of discrete phase jumps indicative of distinct anyonic braiding statistics. After taking into account the impact of bulk-edge coupling, we extract an interfering quasiparticle charge e^{*}=0.17±0.02 and anyonic braiding phase θ_{a}=(-0.43±0.05)×2π, which serve as experimental verification of the theoretically predicted values of e^{*}=1/5 and θ_{a}=-(4π/5). |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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