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arXiv · 2302.02295

Probing single-electron scattering through a non-Fermi liquid charge-Kondo device

Eran Sela·David Goldhaber-Gordon·A. Anthore·F. Pierre·Yuval Oreg
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Abstract

Among the exotic and yet unobserved features of multi-channel Kondo impurity models is their sub-unitary single electron scattering. In the two-channel Kondo model, for example, an incoming electron is fully scattered into a many-body excitation such that the single particle Green function vanishes. Here we propose to directly observe these features in a charge-Kondo device encapsulated in a Mach-Zehnder interferometer - within a device already studied in Ref.[1]. We provide detailed predictions for the visibility and phase of the Aharonov-Bohm oscillations depending on the number of coupled channels and the asymmetry of their couplings.

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Eran Sela, David Goldhaber-Gordon, A. Anthore, F. Pierre, Yuval Oreg. 2023-02-05. Probing single-electron scattering through a non-Fermi liquid charge-Kondo device. https://doi.org/10.1103/physrevb.107.l161108

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