Gate-tunable transmons (gatemons) employing semiconductor Josephson junctions have
recently emerged as building blocks for hybrid quantum circuits. In this study, we present a …

In hybrid Josephson junctions with three or more superconducting terminals coupled to a
semiconducting region, Andreev bound states may form unconventional energy band …

Minimal Kitaev chains composed of two semiconducting quantum dots coupled via a
superconductor have emerged as a promising platform to realize and study Majorana bound …

We use a hybrid superconductor-semiconductor transmon device to perform spectroscopy of
a quantum dot Josephson junction tuned to be in a spin-1/2 ground state with an unpaired …

We demonstrate microwave measurements of the Andreev-bound-state (ABS) spectrum in
planar Josephson junctions (JJs) defined in Ge high-mobility two-dimensional hole gases …

The proximity effect of superconductivity on confined states in semiconductors gives rise to
various bound states such as Andreev bound states, Andreev molecules, and Majorana zero …

Majorana bound states (MBSs) are quasiparticles that are their own antiparticles. They are
predicted to emerge as zero-energy modes localized at the boundary of a topological …

A simple impurity solver is shown to capture impurity-induced superconducting subgap
states in quantitative agreement with the numerical renormalization group and quantum …

Electrostatic charging affects the many-body spectrum of Andreev states, yet its influence on
their microwave properties has not been elucidated. We developed a circuit quantum …

We study a gate-tunable superconducting qubit (gatemon) based on a thin InAs-Al hybrid
nanowire. Using a gate voltage to control its Josephson energy, the gatemon can reach the …