Quantum breakdown of superconductivity in low-dimensional materials
B Sacépé, M Feigel'man, TM Klapwijk - Nature Physics, 2020 - nature.com
In order to understand the emergence of superconductivity it is useful to study the reverse
process and identify the various pathways that lead to its destruction. One way is to increase …
process and identify the various pathways that lead to its destruction. One way is to increase …
Granular aluminium nanojunction fluxonium qubit
Mesoscopic Josephson junctions, consisting of overlapping superconducting electrodes
separated by a nanometre-thin oxide layer, provide a precious source of nonlinearity for …
separated by a nanometre-thin oxide layer, provide a precious source of nonlinearity for …
Superconductor-ferromagnet hybrids for non-reciprocal electronics and detectors
We review the use of hybrid thin films composed of superconductors and ferromagnets for
creating non-reciprocal electronic components and self-biased detectors of electromagnetic …
creating non-reciprocal electronic components and self-biased detectors of electromagnetic …
Phonon traps reduce the quasiparticle density in superconducting circuits
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 …
superconducting quantum circuits and one that is particularly detrimental in devices with …
[HTML][HTML] Operating in a deep underground facility improves the locking of gradiometric fluxonium qubits at the sweet spots
We demonstrate flux-bias locking and operation of a gradiometric fluxonium artificial atom
using two symmetric granular aluminum (grAl) loops to implement the superinductor. The …
using two symmetric granular aluminum (grAl) loops to implement the superinductor. The …
Superconducting granular aluminum resonators resilient to magnetic fields up to 1 Tesla
High kinetic inductance materials constitute a valuable resource for superconducting
quantum circuits and hybrid architectures. Superconducting granular aluminum (grAl) …
quantum circuits and hybrid architectures. Superconducting granular aluminum (grAl) …
Interplay between kinetic inductance, nonlinearity, and quasiparticle dynamics in granular aluminum microwave kinetic inductance detectors
Microwave kinetic inductance detectors (MKIDs) are thin-film, cryogenic, superconducting
resonators. Incident Cooper pair-breaking radiation increases their kinetic inductance …
resonators. Incident Cooper pair-breaking radiation increases their kinetic inductance …
[HTML][HTML] Random telegraph fluctuations in granular microwave resonators
Microwave circuit electrodynamics of disordered superconductors is a very active research
topic spawning a wide range of experiments and applications. For compact superconducting …
topic spawning a wide range of experiments and applications. For compact superconducting …
Observation of giant two-level systems in a granular superconductor
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 …
circuits used in quantum information or particle detector physics. A wide selection of …
Granular superconductors for high kinetic inductance and low loss quantum devices
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 …
circuits. It has the advantage over atomically disordered materials such as NbN x, to …