Unexpected finite-bias visibility dependence in an electronic Mach Zehnder interferometer

Abstract

We use an electronic Mach-Zehnder interferometer to explore the non-equilibrium coherence of the electron waves within the edge-states that form in the integral quantum Hall effect. The visibility of the interference as a function of bias-voltage and transmission probabilities of the mirrors, which are realized by quantum point-contacts, reveal an unexpected asymmetry at finite bias when the transmission probability $T$ of the mirror at the input of the interferometer is varied between 0 and 100%, while the transmission probability of the other mirror at the output is kept fixed. This can lead to the surprising result of an increasing magnitude of interference with increasing bias-voltage for certain values of $T$. A detailed analysis for various transmission probabilities and different directions of the magnetic field demonstrates that this effect is not related to the transmission characteristics of a single quantum point contact, but is an inherent property of the Mach-Zehnder interferometer with edge-states.

References in corpus (10)

• Direct measurement of the coherence length of edge states in the Integer Quantum Hall Regime
• 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
• Entanglement, Dephasing, and Phase Recovery via Cross-Correlation Measurements of Electrons
• Controlled Dephasing of Electrons by Non-Gaussian Shot Noise
• Edge Channel Interference Controlled by Landau Level Filling
• Resonant dephasing in the electronic Mach-Zehnder interferometer
• Nonequilibrium Dephasing in an Electronic Mach-Zehnder Interferometer
• The Behavior of Electronic Interferometers in the Non-Linear Regime

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