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cond-mat.mes-hall2024
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…
cond-mat.mes-hall2024
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…
cond-mat.str-el2024
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…