Interactions in Electronic Mach-Zehnder Interferometers with Copropagating Edge Channels

Abstract

We study Coulomb interactions in the finite bias response of Mach-Zehnder interferometers, which exploit copropagating edge states in the integer quantum Hall effect. Here, interactions are particularly important since the coherent coupling of edge channels is due to a resonant mechanism that is spoiled by inelastic processes. We find that interactions yield a saturation, as a function of bias voltage, of the period-averaged interferometer current, which gives rise to unusual features, such as negative differential conductance, enhancement of the visibility of the current, and nonbounded or even diverging visibility of the differential conductance.

5 pages, 2 figures

References in corpus (15)

• Dephasing in the electronic Mach-Zehnder interferometer at filling factor 2
• Finite bias visibility of the electronic Mach-Zehnder interferometer
• Decoherence and single electron charging in an electronic Mach-Zehnder interferometer
• Edge-State Velocity and Coherence in a Quantum Hall Fabry-Perot Interferometer
• Edge Channel Interference Controlled by Landau Level Filling
• Resonant dephasing in the electronic Mach-Zehnder interferometer
• Decoherence and interactions in an electronic Mach-Zehnder interferometer
• Nonequilibrium Dephasing in an Electronic Mach-Zehnder Interferometer
• The Behavior of Electronic Interferometers in the Non-Linear Regime
• Exactly Solved Model for an Electronic Mach-Zehnder Interferometer
• Multi-channel architecture for electronic quantum-Hall interferometry
• Universal dephasing in a chiral 1D interacting fermion system
• Proposal for a Datta-Das transistor in the quantum Hall regime
• Quantum Hall Mach-Zehnder interferometer at fractional filling factors
• Solution of a model for the two-channel electronic Mach-Zehnder interferometer

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• Time-dependent simulation and analytical modelling of electronic Mach-Zehnder interferometry with edge-states wave packets
• 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
• Decoherence of high-energy electrons in weakly disordered quantum Hall edge states
• $\Delta T$-noise in Multiterminal Hybrid Systems
• Quantum Hall realization of polarized intensity interferometry