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

During the last ten years, superconducting circuits have passed from being interesting
physical devices to becoming contenders for near-future useful and scalable quantum …

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 …

The ability to detect and deal with errors when manipulating quantum systems is a
fundamental requirement for fault-tolerant quantum computing. Unlike classical bits that are …

Future fault-tolerant quantum computers will require storing and processing quantum data in
logical qubits. Here we realize a suite of logical operations on a distance-2 surface code …

Artificial atoms realized by superconducting circuits offer unique opportunities to store and
process quantum information with high fidelity. Among them, implementations of circuits that …

Faster and more accurate state measurement is required for progress in superconducting
qubit experiments with greater numbers of qubits and advanced techniques such as …

Light–matter interactions at the single-particle level have generally been explored in the
context of atomic, molecular and optical physics. Recent advances motivated by quantum …

Quantum data are susceptible to decoherence induced by the environment and to errors in
the hardware processing it. A future fault-tolerant quantum computer will use quantum error …

With favourable error thresholds and requiring only nearest-neighbour interactions on a
lattice, the surface code is an error-correcting code that has garnered considerable attention …