The generation, manipulation, storage, and detection of single photons play a central role in
emerging photonic quantum information technology. Individual photons serve as flying …

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 key distribution—exchanging a random secret key relying on a quantum
mechanical resource—is the core feature of secure quantum networks. Entanglement-based …

Semiconductor quantum dots are capable of emitting polarization entangled photon pairs
with ultralow multipair emission probability even at maximum brightness. Using a quantum …

To date, quantum communication widely relies on attenuated lasers for secret key
generation. In future quantum networks, fundamental limitations resulting from their …

Quantum communications is the art of exchanging and manipulating information beyond the
capabilities of the conventional technologies using the laws of quantum mechanics. With …

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 …

Entanglement-based quantum key distribution can enable secure communication in trusted
node-free networks and over long distances. Although implementations exist both in fiber …

Efficient single photon generation is an important requirement for several practical
applications in quantum technologies, including quantum cryptography. A proof‐of‐concept …

High-purity single-photon sources (SPS) that can operate at room temperature are highly
desirable for a myriad of applications, including quantum photonics and quantum key …