Finite-bias visibility dependence in an electronic Mach-Zehnder interferometer
Finite-bias visibility dependence in an electronic Mach-Zehnder interferometer
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 …