Advances in materials science and engineering have played a central role in the
development of classical computers and will undoubtedly be critical in propelling the …

Quantum computers have made extraordinary progress over the past decade, and
significant milestones have been achieved along the path of pursuing universal fault-tolerant …

The superconducting transmon qubit is a leading platform for quantum computing and
quantum science. Building large, useful quantum systems based on transmon qubits will …

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 …

Materials imperfections in planar superconducting quantum circuits—in particular, two-level-
system (TLS) defects—contribute significantly to decoherence, ultimately limiting the …

Superconducting qubit lifetimes must be both long and stable to provide an adequate
foundation for quantum computing. This stability is imperiled by two-level systems (TLSs) …

Superconducting qubits are a leading candidate for quantum computing but display
temporal fluctuations in their energy relaxation times T 1. This introduces instabilities in multi …

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) …

The innate complexity of solid-state physics exposes superconducting quantum circuits to
interactions with uncontrolled degrees of freedom degrading their coherence. By …

Contemporary methods for benchmarking noisy quantum processors typically measure
average error rates or process infidelities. However, thresholds for fault-tolerant quantum …