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 …

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 …

Photonic graph states—quantum light states where multiple photons are mutually entangled—
are key resources for optical quantum technologies. They are notably at the core of error …

Combining highly coherent spin control with efficient light-matter coupling offers great
opportunities for quantum communication and computing. Optically active semiconductor …

Quantum computing aims at exploiting quantum phenomena to efficiently perform
computations that are unfeasible even for the most powerful classical supercomputers …

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

The quest for the perfect single-photon source includes finding the optimal protocol for
exciting the quantum emitter. Coherent optical excitation was, up until now, achieved by …

The controlled preparation of the excited state in a quantum emitter is a prerequisite for its
usage as a single-photon source—a key building block for quantum technologies. In this …

While several numerical techniques are available for predicting the dynamics of non-
Markovian open quantum systems, most struggle with simulations for very long memory and …

Controlling large-scale many-body quantum systems at the level of single photons and
single atomic systems is a central goal in quantum information science and technology …