BACKGROUND Semiconductor materials feature optical and electronic properties that can
be engineered through their composition and crystal structure. The use of semiconductors …

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

Photonic quantum technology provides a viable route to quantum communication,, quantum
simulation and quantum information processing. Recent progress has seen the realization of …

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

Quantum dots are both excellent single-photon sources and hosts for single spins. This
combination enables the deterministic generation of Raman-photons—bandwidth-matched …

A future quantum internet is expected to generate, distribute, store and process quantum bits
(qubits) over the world by linking different quantum nodes via quantum states of light. To …

In recent decades, quantum dots (QDs) with tunable bandgap, large absorption coefficient,
high quantum yield, multiexciton effect, and easy solution processing have unparalleled …

The generation and long-haul transmission of highly entangled photon pairs is a
cornerstone of emerging photonic quantum technologies with key applications such as …

This Perspective presents an overview on the epitaxial growth and optical properties of
GaAs quantum dots obtained with the droplet etching method as high-quality sources of …

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