Transforming stand-alone qubits into a functional, general-purpose quantum processing unit
requires an architecture where many-body quantum entanglement can be generated and …

Error-corrected quantum computers can only work if errors are small and uncorrelated. Here,
I show how cosmic rays or stray background radiation affects superconducting qubits by …

Out of equilibrium quasiparticles (QPs) are one of the main sources of decoherence in
superconducting quantum circuits and one that is particularly detrimental in devices with …

The high kinetic inductance offered by granular aluminum (grAl) has recently been
employed for linear inductors in superconducting high-impedance qubits and kinetic …

Many superconducting devices rely on the finite gap in the excitation spectrum of a
superconductor: thanks to this gap, at temperatures much smaller than the critical one the …

The fundamental excitations in superconductors—Bogoliubov quasiparticles—can be either
a resource or a liability in superconducting devices: they are what enables photon detection …

High kinetic inductance materials constitute a valuable resource for superconducting
quantum circuits and hybrid architectures. Superconducting granular aluminum (grAl) …

Aluminum-based platforms have allowed to reach major milestones for superconducting
quantum circuits. For the next generation of devices, materials that are able to maintain low …

Disordered thin films are a common choice of material for superconducting, high impedance
circuits used in quantum information or particle detector physics. A wide selection of …

Granular aluminum is a promising material for high kinetic inductance devices such as qubit
circuits. It has the advantage over atomically disordered materials such as NbN x, to …