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DOE OSTI · 2002013

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

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

Among the exotic and yet unobserved features of multichannel Kondo impurity models is their subunitary 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's 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 by Duprez et al. [Science 366, 1243 (2019)]. Finally, 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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Sela, Eran, Goldhaber-Gordon, David, Anthore, A., Pierre, F., Oreg, Yuval. 2023-04-20. Probing single electron scattering through a non-Fermi-liquid charge-Kondo device. https://doi.org/10.1103/physrevb.107.l161108

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