Thermal transport in a spin-1/2 Heisenberg chain coupled to a (non) magnetic impurity

Abstract

We explore the effect of a (non) magnetic impurity on the thermal transport of the spin-1/2 Heisenberg chain model. This unique system allows to probe Kondo-type phenomena in a prototype strongly correlated system. Using numerical diagonalization techniques we study the scaling of the frequency dependent thermal conductivity with system size and host-impurity coupling strength as well as the dependence on temperature. We focus in particular on the analysis of cutting-healing of weak links or a magnetic impurity by the host chain via Kondo-like screening as the temperature is lowered.

7 pages, 12 figures

References in corpus (4)

• Heat conduction in low-dimensional quantum magnets
• Impurity Entanglement Entropy and the Kondo Screening Cloud
• Incoherent transport induced by a single static impurity in a Heisenberg chain
• Kondo Effect in Spin Chains

Cited by in corpus (9)

• Finite-temperature transport in one-dimensional quantum lattice models
• Eigenstate Thermalization in a Locally Perturbed Integrable System
• Low-frequency behavior of off-diagonal matrix elements in the integrable XXZ chain and in a locally perturbed quantum-chaotic XXZ chain
• Weak integrability breaking: chaos with integrability signature in coherent diffusion
• Transport through interacting defects and lack of thermalisation
• Fermionic Magic Resources of Quantum Many-Body Systems
• Transport properties of a spin-1/2 Heisenberg chain with an embedded spin-S impurity
• Boundary Chaos: Spectral Form Factor
• Scattering of spinon excitations by potentials in the 1D Heisenberg model