Programme

O.12 -- Oral, VCTP-50

Date: Tuesday, 5 August 2025

Time: 14:40 - 15:05

Thermoelectric transport in some charge Kondo circuits: Generalized Cutler-Mott relation

T. K. T. Nguyen, M. N. Kiselev

Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, 118000 Hanoi, Vietnam The Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, I-34151, Trieste, Italy

In this talk, we revisit charge Kondo circuits, focusing on two models: the single-site two-channel model and the two-site two-channel model. We compute the thermopower using the Cutler-Mott formula and compare our results to thermopower values obtained directly as the ratio of the thermoelectric coefficient to the electrical conductance. Based on this comparison, we propose a generalized Cutler-Mott relation that applies to both charge Kondo setups. Remarkably, this generalization holds in both the Fermi liquid and non-Fermi liquid regimes. The additional logarithmic prefactor introduced in our modified relation highlights the role of charge Kondo correlations in thermoelectric transport.

Presenter: Nguyen Thi Kim Thanh