Thermoelectric Transport in a Three-Channel Charge Kondo Circuit
arXiv:1911.06012 · doi:10.1103/PhysRevLett.125.026801
Abstract
We investigate theoretically the thermoelectric transport through a circuit implementation of the three-channel "charge" Kondo model quantum simulator [Z. Iftikhar et al., Science 360, 1315 (2018)]. The universal temperature scaling law of the Seebeck coefficient is computed perturbatively approaching the non-Fermi liquid strong coupling fixed point using abelian bosonization technique. The predicted scaling behavior of the thermoelectric power sheds a light on the properties of emerging parafermions and gives an access to exploring pre-fractionalized zero modes in the quantum transport experiments. We discuss a generalization of approach for investigating a multi-channel Kondo problem with emergent crossovers between "weak" non-Fermi liquid regimes corresponding to different low-temperature fixed points.
arXiv comment6 pages, 1 figure; published version
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