Material matters in superconducting qubits
CE Murray - Materials Science and Engineering: R: Reports, 2021 - Elsevier
The progress witnessed within the field of quantum computing has been enabled by the
identification and understanding of interactions between the state of the quantum bit (qubit) …
identification and understanding of interactions between the state of the quantum bit (qubit) …
Loss mechanisms and quasiparticle dynamics in superconducting microwave resonators made of thin-film granular aluminum
Superconducting high kinetic inductance elements constitute a valuable resource for
quantum circuit design and millimeter-wave detection. Granular aluminum (grAl) in the …
quantum circuit design and millimeter-wave detection. Granular aluminum (grAl) in the …
Implementation of a transmon qubit using superconducting granular aluminum
The high kinetic inductance offered by granular aluminum (grAl) has recently been
employed for linear inductors in superconducting high-impedance qubits and kinetic …
employed for linear inductors in superconducting high-impedance qubits and kinetic …
Nondegenerate parametric amplifiers based on dispersion-engineered Josephson-junction arrays
Determining the state of a qubit on a time scale much shorter than its relaxation time is an
essential requirement for quantum information processing. With the aid of a nondegenerate …
essential requirement for quantum information processing. With the aid of a nondegenerate …
Substrate surface engineering for high-quality silicon/aluminum superconducting resonators
Quantum bits (qubits) with long coherence times are an important element for the
implementation of medium-and large-scale quantum computers. In the case of …
implementation of medium-and large-scale quantum computers. In the case of …
Probing defect densities at the edges and inside Josephson junctions of superconducting qubits
Tunneling defects in disordered materials form spurious two-level systems which are a
major source of decoherence for micro-fabricated quantum devices. For superconducting …
major source of decoherence for micro-fabricated quantum devices. For superconducting …
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 …
Coherent superconducting qubits from a subtractive junction fabrication process
A Stehli, JD Brehm, T Wolz, P Baity, S Danilin… - Applied Physics …, 2020 - pubs.aip.org
Josephson tunnel junctions are the centerpiece of almost any superconducting electronic
circuit, including qubits. Typically, the junctions for qubits are fabricated using shadow …
circuit, including qubits. Typically, the junctions for qubits are fabricated using shadow …
Quantum sensors for microscopic tunneling systems
The anomalous low-temperature properties of glasses arise from intrinsic excitable entities,
so-called tunneling Two-Level-Systems (TLS), whose microscopic nature has been baffling …
so-called tunneling Two-Level-Systems (TLS), whose microscopic nature has been baffling …
Inductively shunted transmon qubit with tunable transverse and longitudinal coupling
We present the design of an inductively shunted transmon qubit with flux-tunable coupling to
an embedded harmonic mode. This circuit construction offers the possibility to flux-choose …
an embedded harmonic mode. This circuit construction offers the possibility to flux-choose …