PHYSICAL REVIEW B 109, 115139 (2024)

ISSN: 2469-9950, SCIE

Thermoelectric transport across a tunnel contact between two charge Kondo circuits: Beyond perturbation theory

T. K. T. Nguyen , H. Q. Nguyen , and M. N. Kiselev

Following a theoretical proposal on multi-impurity charge Kondo circuits [T. K. T. Nguyen and M. N. Kiselev, Phys. Rev. B 97, 085403 (2018)] and the experimental breakthrough in fabrication of the two-site Kondo simulator [W. Pouse et al., Nat. Phys. 19, 492 (2023)] we investigate a thermoelectric transport through a double-dot charge Kondo quantum nanodevice in the strong coupling operational regime. We focus on the fingerprints of the non-Fermi liquid and its manifestation in the charge and heat quantum transport. We construct a full-fledged quantitative theory describing crossovers between different regimes of the multichannel charge Kondo quantum circuits and discuss possible experimental realizations of the theory.

DOI: 10.1103/PhysRevB.109.115139