Generation of energy selective excitations in quantum Hall edge states

Abstract

We operate an on-demand source of single electrons in high perpendicular magnetic fields up to 30T, corresponding to a filling factor below 1/3. The device extracts and emits single charges at a tunable energy from and to a two-dimensional electron gas, brought into well defined integer and fractional quantum Hall (QH) states. It can therefore be used for sensitive electrical transport studies, e.g. of excitations and relaxation processes in QH edge states.

References in corpus (7)

• An On-Demand Coherent Single Electron Source
• Single-parameter non-adiabatic quantized charge pumping
• Robust single-parameter quantized charge pumping
• Single-parameter quantized charge pumping in high magnetic fields
• Enhanced current quantization in high frequency electron pumps in a perpendicular magnetic field
• Observation of inter-edge magnetoplasmon mode in a degenerate two-dimensional electron gas
• Spatially probed electron-electron scattering in a two-dimensional electron gas

Cited by in corpus (9)

• Coherence and Indistinguishability of Single Electrons Emitted by Independent Sources
• Hong-Ou-Mandel experiment for temporal investigation of single electron fractionalization
• Partitioning of on-demand electron pairs
• Real time decoherence of Landau and Levitov quasi-particles in quantum Hall edge channels
• Electron and hole Hong-Ou-Mandel interferometry
• Single-electron source: Adiabatic versus non-adiabatic emission
• Quantum fluctuations and coherence in high-precision single-electron capture
• A quantized current source with mesoscopic feedback
• Elastic precession of electronic spin states in interacting integer quantum Hall edge channels