Quantum theory has been successfully validated in numerous laboratory experiments. But
would such a theory, which effectively describes the behavior of microscopic physical …

In the context of quantum technologies, the generation and manipulation of single photons
has become a key element for applications such as quantum communication and quantum …

In the past 20 years, impressive progress has been made both experimentally and
theoretically in superconducting quantum circuits, which provide a platform for manipulating …

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 …

Photonics on thin-film lithium niobate (TFLN) has emerged as one of the most pursued
disciplines within integrated optics. Ultracompact and low-loss optical waveguides and …

A thin-film periodically poled lithium niobate waveguide was designed and fabricated which
generates entangled photon pairs at telecommunications wavelengths with high …

Metasurfaces consisting of engineered dielectric or metallic structures provide unique
solutions to realize exotic phenomena including negative refraction, achromatic focusing …

ABSTRACT Spontaneous Parametric Down-Conversion (SPDC), also known as parametric
fluorescence, parametric noise, parametric scattering and all various combinations of the …

Vector vortex beams are structured states of light that are nonseparable in their polarisation
and spatial mode, they are eigenmodes of free-space and many fiber systems, and have the …

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