Localized or propagating Majorana boundary modes are the key feature of topological
superconductors. They are rare in naturally occurring compounds, but the tailored …

A major challenge in developing topological superconductors for implementing topological
quantum computing is their characterization and control. It has been proposed that ap-wave …

Coupling individual atoms fundamentally changes the state of matter: electrons bound to
atomic cores become delocalized turning an insulating state to a metallic one. A chain of …

Magnetic adatom chains on surfaces constitute fascinating quantum spin systems.
Superconducting substrates suppress interactions with bulk electronic excitations but couple …

Interfacing magnetism with superconducting condensates is rapidly emerging as a viable
route for the development of innovative quantum technologies. In this context, the …

Novel many-body and topological electronic phases can be created in assemblies of
interacting spins coupled to a superconductor, such as one-dimensional topological …

Theoretical descriptions of Yu-Shiba-Rusinov (YSR) states induced by magnetic impurities
inside the gap of a superconductor typically rely on a classical spin model or are restricted to …

Magnetic impurities in s-wave superconductors lead to spin-polarized Yu-Shiba-Rusinov
(YSR) in-gap states. Chains of magnetic impurities offer one of the most viable routes for the …

We present an exactly solvable effective model of a double quantum dot coupled to
superconducting leads. This model is a generalization of the well-known superconducting …

Magnetic adatoms on a superconducting substrate undergo a quantum phase transition as
their exchange coupling to the conduction electrons increases. For quantum spins, this …