Thermoelectric Transport in a Three-Channel Charge Kondo Circuit

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 $T^{1/3}\log T$ scaling behavior of the thermoelectric power sheds a light on the properties of $Z_3$ 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 $Z_N\to Z_M$ crossovers between "weak" non-Fermi liquid regimes corresponding to different low-temperature fixed points.

6 pages, 1 figure; published version

References in corpus (8)

• Non-Abelian Anyons and Topological Quantum Computation
• Observation of the two-channel Kondo effect
• Quantum limit of heat flow across a single electronic channel
• Thermopower of a Kondo-correlated quantum dot
• Anyons in Multichannel Kondo Systems
• Controlling charge quantization with quantum fluctuations
• Kondo-based Qubits for Topological Quantum Computation
• Wiedemann-Franz law in a non-Fermi liquid and Majorana central charge: Thermoelectric transport in a two-channel Kondo system

Cited by in corpus (19)

• Fractional entropy of multichannel Kondo systems from conductance-charge relations
• Fractional Mutual Statistics on Integer Quantum Hall Edges
• Wiedemann-Franz law in a non-Fermi liquid and Majorana central charge: Thermoelectric transport in a two-channel Kondo system
• SO(5) non-Fermi liquid in a Coulomb box device
• Manipulating Non-Abelian Anyons in a Chiral Multichannel Kondo Model
• Generalized Wiedemann-Franz law in a two-site charge Kondo circuit: Lorenz ratio as a manifestation of the orthogonality catastrophe
• Coulomb blockade oscillations of heat conductance in the charge Kondo regime
• Quantum thermoelectric and heat transport in the overscreened Kondo regime: Exact conformal field theory results
• Quantum thermal transport in the charged Sachdev-Ye-Kitaev model: Thermoelectric Coulomb blockade
• SO(5) critical point in a spin-flavor Kondo device -- Bosonization and refermionization solution
• Thermoelectrics of a two-channel charge Kondo circuit: Role of electron-electron interactions in a quantum point contact
• Spin Seebeck effect of correlated magnetic molecules
• Charge Kondo circuit as a detector for electron-electron interactions in a Luttinger Liquid
• Thermoelectric transport across a tunnel contact between two charge Kondo circuits: beyond perturbation theory
• Chiral numerical renormalization group
• Universal relations between thermoelectrics and noise in mesoscopic transport across a tunnel junction
• Heat conductance oscillations in two weakly connected charge Kondo circuits
• Multistage Kondo effect in a multiterminal geometry: A modular quantum interferometer
• Noise signatures of a charged Sachdev-Ye-Kitaev dot in mesoscopic transport