Quantum Hall valley splitters and tunable Mach-Zehnder interferometer in graphene

Graphene is a very promising test-bed for the field of electron quantum optics. However, a fully tunable and coherent electronic beam splitter is still missing. We report the demonstration of electronic beam splitters in graphene that couple quantum Hall edge channels having opposite valley polariza...

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Veröffentlicht in:	arXiv.org 2021-07
Hauptverfasser:	M Jo, Brasseur, P, Assouline, A, Fleury, G, H -S Sim, Watanabe, K, Taniguchi, T, Dumnernpanich, W, Roche, P, Glattli, D C, Kumada, N, Parmentier, F D, Roulleau, P
Format:	Artikel
Sprache:	eng
Schlagworte:	Beam splitters Bias Channels Coherence Dependence Electric potential Electrons Graphene Mach-Zehnder interferometers Oscillations P-n junctions Physics - Mesoscale and Nanoscale Physics Quantum optics Quantum phenomena Valleys Visibility Voltage
Online-Zugang:	Volltext
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