Real-time and -space visualization of excitations of the ν= 1/3 fractional quantum Hall edge

2022/01/25 by Akinori Kamiyama, Kamiyama, Akinori, Masahiro Matsuura +9
Computer Science · Physics and Astronomy · #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Quantum Information and Cryptography #Quantum and electron transport phenomena #Quantum optics and atomic interactions

paper · pdf · doi:10.48550/arxiv.2201.10180

openalex publication_date 2022/01/25 · openalex created_date 2022/05/05 · openalex updated_date 2026/07/28

Abstract

We present scanning optical stroboscopic confocal microscopy and spectroscopy measurements wherein three degrees of freedom, namely energy, real-space, and real-time, are resolvable. The edge-state propagation is detected as a temporal change in the optical response in the downstream edge. We succeeded in visualizing the excited states of the most fundamental fractional quantum Hall (FQH) state and the collective excitations near the edge. The results verify the current understanding of the edge excitation and also point toward further dynamics outside the edge channel.

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