Related Experiment Video
Updated: Feb 8, 2026

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
Published on: August 2, 2019
Electronic energy spectroscopy of monochromatic edge magnetoplasmons in the quantum Hall regime
Tomoaki Ota1, Masayuki Hashisaka1,2, Koji Muraki2
1Department of Physics, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro, Tokyo, 152-8551, Japan.
Abstract:
We investigate electronic excitation in a quantum Hall edge channel when a monochromatic plasmon wave is excited by applying a radio-frequency voltage to a long surface gate on an AlGaAs/GaAs heterostructure. A quantum-dot energy spectrometer is employed to evaluate the amplitude of the potential wave and possible electronic heating. The potential wave is analyzed with a capacitance model. Non-monotonic frequency dependence observed under specific conditions can be explained by destructive plasmon interference in the gated region. The observed small heating effect suggests that the single plasmon mode is dominantly excited with this scheme.
Related Concept Videos
Quantum Numbers
The Quantum-Mechanical Model of an Atom
The Hall Effect
Ionization Energy
Electron Affinity
2D NMR: Heteronuclear Single-Quantum Correlation Spectroscopy (HSQC)

