Heat conductance oscillations in two weakly connected charge Kondo circuits

Abstract

We revisit a model describing Seebeck effect on a weak link between two charge Kondo circuits, which has been proposed in the [Phys. Rev. B 97, 085403 (2018)]. We calculate the thermoelectric coefficients in the perturbation theory assuming smallness of the reflection amplitudes of the quantum point contacts. We focus on the linear response equations for the heat conductance in three different scenarios as: Fermi liquid vs Fermi liquid, Fermi liquid vs non-Fermi liquid, nonFermi liquid vs non-Fermi liquid. The oscillations of the heat conductance as a function of the gate voltage of each quantum dot are analysed in both Fermi liquid and non-Fermi liquid regimes. We discuss possible experimental realizations of the model to observe the signatures of the non-Fermi liquid behaviour in the heat conductance measurements.

12 pages, 2 figures

References in corpus (7)

• Observation of the two-channel Kondo effect
• Thermopower of a Kondo-correlated quantum dot
• Thermopower as a Possible Probe of Non-Abelian Quasiparticle Statistics in Fractional Quantum Hall Liquids
• Failure of the Wiedemann-Franz Law in Mesoscopic Conductors
• Ettingshausen effect due to Majorana modes
• Coulomb blockade oscillations of heat conductance in the charge Kondo regime
• Wiedemann-Franz law in scattering theory revisited