Quantum-mechanical effects at the macroscopic level were first explored in Josephson-
junction-based superconducting circuits in the 1980s. In recent decades, the emergence of …

Superconducting qubits are leading candidates in the race to build a quantum computer
capable of realizing computations beyond the reach of modern supercomputers. The …

The aim of this review is to provide quantum engineers with an introductory guide to the
central concepts and challenges in the rapidly accelerating field of superconducting …

Over the last two decades, tremendous advances have been made for constructing large-
scale quantum computers. In particular, quantum computing platforms based on …

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

A robust cryogenic infrastructure in form of a wired, thermally optimized dilution refrigerator
is essential for solid-state based quantum processors. Here, we engineer a cryogenic setup …

Machine learning techniques have led to broad adoption of a statistical model of computing.
The statistical distributions natively available on quantum processors are a superset of those …

High-quality two-qubit gate operations are crucial for scalable quantum information
processing. Often, the gate fidelity is compromised when the system becomes more …

Conditional-phase (cz) gates in transmons can be realized by flux pulsing computational
states towards resonance with noncomputational ones. We present a 40 ns cz gate based …

Maintaining or even improving gate performance with growing numbers of parallel
controlled qubits is a vital requirement for fault-tolerant quantum computing. For …