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 …

Optical photons are powerful carriers of quantum information, which can be delivered in free
space by satellites or in fibers on the ground over long distances. Entanglement of quantum …

Global-scale quantum communication links will form the backbone of the quantum internet.
However, exponential loss in optical fibres precludes any realistic application beyond few …

Epitaxial quantum dots formed by III–V compound semiconductors are excellent sources of
non-classical photons, creating single photons and entangled multi-photon states on …

A hybrid interface of solid-state single-photon sources and atomic quantum memories is a
long sought-after goal in photonic quantum technologies. Here, we demonstrate …

Long-distance entanglement is a very precious resource, but its distribution is very difficult
due to the exponential losses of light in optical fibres. A possible solution consists in the use …

Efficient synchronization of single photons that are compatible with narrow band atomic
transitions is an outstanding challenge, which could prove essential for photonic quantum …

The T center, a silicon-native spin-photon interface with telecommunication-band optical
transitions and long-lived microwave qubits, offers an appealing new platform for both …

Coherent optical memories will likely play an important role in future quantum
communication networks. Among the different platforms, memories based on ladder-type …

High-performance quantum memory for quantized states of light is a prerequisite building
block of quantum information technology. Despite great progresses of optical quantum …