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 …

Quantum cryptography harnesses quantum light, in particular single photons, to provide
security guarantees that cannot be reached by classical means. For each cryptographic task …

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

Quantum key distribution (QKD) allows the distribution of cryptographic keys between
multiple users in an information-theoretic secure way, exploiting quantum physics. While …

We report on in-lab free space quantum key distribution (QKD) experiments over 40 cm
distance using highly efficient electrically driven quantum dot single-photon sources emitting …

The controlled generation of non-classical states of light is a challenging task at the heart of
quantum optics. Aside from the mere spirit of science, the related research is strongly driven …

Quantum light sources emitting triggered single photons or entangled photon pairs have the
potential to boost the performance of quantum key distribution (QKD) systems. Proof-of …

Deterministic solid state quantum light sources are considered key building blocks for future
communication networks. While several proof-of-principle experiments of quantum …