Simultaneous breaking of inversion-and time-reversal symmetry in Josephson junction (JJ)
leads to a possible violation of the I (φ)=− I (− φ) equality for the current–phase relation. This …

Andreev spin qubits have recently emerged as an alternative qubit platform with realizations
in semiconductor–superconductor hybrid nanowires. In these qubits, the spin degree of …

Following the demonstration of semiconductor-based Josephson junctions, which are fully
tunable by electrical means, new routes have been opened for the study of hybrid …

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 performed microwave spectroscopy of an InAs nanowire between superconducting
contacts implementing a finite-length, multichannel Josephson weak link. Certain features in …

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 demonstrate a flip-chip-based approach to microwave measurements of Andreev bound
states (ABSs) in a gate-tunable planar Josephson junction (JJ) using inductively coupled …

When two superconductors are separated by a weak link, a supercurrent is carried by
Andreev bound states formed by the phase-coherent reflection of electrons and their time …

Josephson junctions in InAs nanowires proximitized with an Al shell can host gate-tunable
Andreev bound states. Depending on the bound state occupation, the fermion parity of the …

Spectral properties of a quantum circuit are efficiently read out by monitoring the resonance
frequency shift it induces in a microwave resonator coupled to it. When the two systems are …