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arXiv · 1103.4046

Dynamical resurrection of the visibility in a Mach-Zehnder interferometer

A. V. Lebedev·G. Blatter
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Abstract

We study a single-electron pulse injected into the chiral edge-state of a quantum Hall device and subject to a capacitive Coulomb interaction. We find that the scattered multi-particle state remains unentangled and hence can be created itself by a suitable classical voltage-pulse $V(t)$. The application of the inverse pulse $-V(-t)$ corrects for the shake-up due to the interaction and resurrects the original injected wave packet. We suggest an experiment with an asymmetric Mach-Zehnder interferometer where the application of such pulses manifests itself in an improved visibility.

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A. V. Lebedev, G. Blatter. 2011-03-21. Dynamical resurrection of the visibility in a Mach-Zehnder interferometer. https://doi.org/10.1103/physrevlett.107.076803

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