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 …

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 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 …

We have demonstrated highly pure single-photon emissions from an InAs/InP quantum dot
at the wavelength of 1.5 μm. By applying quasi-resonant excitation, one exciton is …

In recent years, research on integrated quantum circuits has developed rapidly and exciting
results have been achieved. The overarching goal of this emerging research direction in the …

In this work, we present a stand-alone and fiber-coupled quantum-light source. The plug-
and-play device is based on an optically driven quantum dot delivering single photons via …

A non-classical light source emitting pairs of identical photons represents a versatile
resource of interdisciplinary importance with applications in quantum optics and quantum …

Sources of non‐classical light are of paramount importance for future applications in
quantum science and technology such as quantum communication, quantum computation …

In light science and applications, equally important roles are played by efficient light
emitters/detectors and by the optical elements responsible for light extraction and delivery …

Quantum emitters radiate light omni-directionally, making it hard to collect and use the
generated photons. Here, we propose a three-dimensional metal–dielectric parabolic …