# Quantum Magnetism and Topological Superconductivity in Yu-Shiba-Rusinov Chains.

@article{Steiner2022QuantumMA, title={Quantum Magnetism and Topological Superconductivity in Yu-Shiba-Rusinov Chains.}, author={Jacob F. Steiner and Christophe Mora and Katharina J. Franke and Felix von Oppen}, journal={Physical review letters}, year={2022}, volume={128 3}, pages={ 036801 } }

Chains of magnetic adatoms on superconductors have been discussed as promising systems for realizing Majorana end states. Here, we show that dilute Yu-Shiba-Rusinov (YSR) chains are also a versatile platform for quantum magnetism and correlated electron dynamics, with widely adjustable spin values and couplings. Focusing on subgap excitations, we derive an extended t-J model for dilute quantum YSR chains and use it to study the phase diagram as well as tunneling spectra. We explore the…

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