4 citations · 11 across the 7 of their papers we have counts for
7 papers
Topology and Quantum-Spin-Classical-Spin Crossover of the Gapped Kondo Effect
David Krüger, Michael Potthoff
The gapped Kondo effect describes the screening of an impurity spin locally coupled via an antiferromagnetic exchange interaction to a conduction-electron system exhibi…
Disorder-Induced Topological Phases in a Two-Dimensional Chern Insulator with Strong Magnetic Disorder
Devesh Vaish, Michael Potthoff
Strong directional disorder in local magnetic moments coupled to a Chern insulator gives rise to topological phases that cannot be continuously connected to the clean limit and are…
Exchangeless braiding of Majorana zero modes in weakly coupled Kitaev chains
Robin Quade, Michael Potthoff
Exchangeless braiding of Majorana modes is studied in minimal networks of weakly hybridized Kitaev chains of finite length using a rigorous many-body framework. In particular, for…
Microscopic theory of spin friction and dissipative spin dynamics
Nicolas Lenzing, David Krüger, Michael Potthoff
The real-time dynamics of local magnetic moments exchange coupled to a metallic system of conduction electrons is subject to dissipative friction even in the absence of spin-orbit…
Kondo Screening and Indirect Magnetic Exchange through a Conventional Superconductor Studied by the Density-Matrix Renormalization Group
Cassian Plorin, Michael Potthoff
The competition between the Kondo screening and indirect magnetic exchange in systems with two magnetic impurities coupled to a conventional s-wave superconductor gives rise to a n…
Prerelaxation in quantum, classical, and quantum-classical two-impurity models
Michael Elbracht, Michael Potthoff
We numerically study the relaxation dynamics of impurity-host systems, focusing on the presence of long-lived metastable states in the non-equilibrium dynamics after an initial exc…
Bound states and local topological phase diagram of classical impurity spins coupled to a Chern insulator
Simon Michel, Axel Fünfhaus, Robin Quade +2
The existence of bound states induced by local impurities coupled to an insulating host depends decisively on the global topological properties of the host's electronic structure.…