Layered materials are taking centre stage in the ever-increasing research effort to develop
material platforms for quantum technologies. We are at the dawn of the era of layered …

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 …

Superposition, entanglement and non-locality constitute fundamental features of quantum
physics. The fact that quantum physics does not follow the principle of local causality,–can …

We report on an elementary quantum network of two atomic ions separated by 230 m. The
ions are trapped in different buildings and connected with 520 (2) m of optical fiber. At each …

Nowadays, quantum computing has reached the engineering phase, with fully-functional
quantum processors integrating hundreds of noisy qubits. Yet–to fully unveil the potential of …

Scaling is now a key challenge in superconducting quantum computing. One solution is to
build modular systems in which smaller-scale quantum modules are individually constructed …

Worldwide, enormous efforts are directed toward the development of the so‐called quantum
internet. Turning this long‐sought‐after dream into reality is a great challenge that will …

Quantum entanglement is a key resource in currently developed quantum technologies.
Sharing this fragile property between superconducting microwave circuits and optical or …

Routing quantum information between non-local computational nodes is a foundation for
extensible networks of quantum processors. Quantum information transfer between arbitrary …

A quantum repeater node is presented based on trapped ions that act as single-photon
emitters, quantum memories, and an elementary quantum processor. The node's ability to …