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 …

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 generation of high-fidelity distributed multi-qubit entanglement is a challenging task for
large-scale quantum communication and computational networks,,–. The deterministic …

Detecting single–photon level signals—carriers of both classical and quantum information—
is particularly challenging for low-energy microwave frequency excitations. Here we …

In quantum physics, measurements can fundamentally yield discrete and random results.
Emblematic of this feature is Bohr's 1913 proposal of quantum jumps between two discrete …

The storage and processing of quantum information are susceptible to external noise,
resulting in computational errors. A powerful method to suppress these effects is quantum …

Sharing information coherently between nodes of a quantum network is fundamental to
distributed quantum information processing. In this scheme, the computation is divided into …

In this report we review the present state of the art of the control of propagating quantum
states at the single-electron level and its potential application to quantum information …

A quantum computer has the potential to efficiently solve problems that are intractable for
classical computers. However, constructing a large-scale quantum processor is challenging …

Coupling isolated quantum systems through propagating photons is a central theme in
quantum science,, with the potential for groundbreaking applications such as distributed …