Kitaev chains in quantum dot-superconductor arrays are a promising platform for the
realization of topological superconductivity. As recently demonstrated, even a two-site chain …

The formation of a topological superconducting phase in a quantum-dot–based Kitaev chain
requires nearest neighbor crossed Andreev reflection and elastic cotunneling. Here, we …

Connecting double quantum dots via a semiconductor-superconductor hybrid segment
offers a platform for creating a two-site Kitaev chain that hosts Majorana zero modes at a …

Yu-Shiba-Rusinov (YSR) bound states appear when a magnetic atom interacts with a
superconductor. Here, we report on spin-resolved spectroscopic studies of YSR states …

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 …

As the condensed matter analog of Majorana fermion, the Majorana zero-mode is well
known as a building block of fault-tolerant topological quantum computing. This review …

The formation of a topological superconducting phase in a quantum-dot-based Kitaev chain
requires nearest neighbor crossed Andreev reflection and elastic co-tunneling. Here we …

Magnetic impurities embedded in a metal are screened by the Kondo effect, signaled by the
formation of an extended correlation cloud, the so-called Kondo or screening cloud. In a …

Quantum dots have sharply defined energy levels, which can be used for high resolution
energy spectroscopy when integrated in tunneling circuitry. Here we report dot-assisted …

Hybrid nanostructures consisting of two parallel InAs nanowires connected by an epitaxially
grown superconductor (SC) shell recently became available. Due to the defect-free SC …