Nanoscale Mach-Zehnder interferometer with spin-resolved quantum Hall edge states

Abstract

We realize a nanoscale-area Mach-Zehnder interferometer with co-propagating quantum Hall spin-resolved edge states and demonstrate the persistence of gate-controlled quantum interference oscillations, as a function of an applied magnetic field, at relatively large temperatures. Arrays of top-gate magnetic nanofingers are used to induce a resonant charge transfer between the pair of spin-resolved edge states. To account for the pattern of oscillations measured as a function of magnetic field and gate voltage, we have developed a simple theoretical model which satisfactorily reproduces the data.

7 pages, 5 figures

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Cited by in corpus (11)

• Anyons in Quantum Hall Interferometry
• Coulomb and exchange interaction effects on the exact two-electron dynamics in the Hong-Ou-Mandel interferometer based on Hall edge states
• Chiral Majorana Interference as a Source of Quantum Entanglement
• Dynamics and Hall-edge-state mixing of localized electrons in a two-channel Mach-Zehnder interferometer
• Two-electron selective coupling in an edge-state based conditional phase shifter
• Tunable and direction-dependent group velocities in topologically protected edge states
• Gate controlled unitary operation on flying spin qubits in quantum Hall edge states
• Anomalous Aharonov-Bohm Interference in the Presence of Edge Reconstruction
• Half-mirror for electrons on quantum Hall copropagating edge channels
• $\Delta T$-noise in Multiterminal Hybrid Systems
• Quantum Hall realization of polarized intensity interferometry