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Counting statistics and dephasing transition in an electronic Mach-Zehnder interferometer

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Helzel, Andreas ; Litvin, Leonid ; Levkivskyi, I. P. ; Sukhorukov, E. V. ; Wegscheider, Werner ; Strunk, Christoph
Date of publication of this fulltext: 18 Oct 2016 11:22


It was recently suggested that a novel type of phase transition may occur in the visibility of electronic Mach-Zehnder interferometers. Here, we present experimental evidence for the existence of this transition. The transition is induced by strongly non-Gaussian noise that originates from the strong coupling of a quantum point contact to the interferometer. We provide a transparent physical ...


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