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

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

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

We report on the observation of nearly maximally entangled photon pairs from
semiconductor quantum dots, without resorting to postselection techniques. We use GaAs …

Photonic entanglement swapping, the procedure of entangling photons without any direct
interaction, is a fundamental test of quantum mechanics and an essential resource to the …

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 …

More than 80 years have passed since the first publication on entangled quantum states.
Over this period, the concept of spookily interacting quantum states became an emerging …

The prospect of using the quantum nature of light for secure communication keeps spurring
the search and investigation of suitable sources of entangled photons. A single …

Single-photon sources based on semiconductor quantum dots have emerged as an
excellent platform for high efficiency quantum light generation. However, scalability remains …

Photonic quantum technologies are on the verge of finding applications in everyday life with
quantum cryptography and quantum simulators on the horizon. Extensive research has …