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

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