The scale-up of quantum hardware is fundamental to realize the full potential of quantum
technology. Among a plethora of hardware platforms, photonics stands out: it provides a …

Photons have been a flagship system for studying quantum mechanics, advancing quantum
information science, and developing quantum technologies. Quantum entanglement …

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

Frequency conversion processes, such as second-and third-harmonic generation, are
commonly realized in nonlinear optics, offering opportunities for applications in photonics …

Quantum simulators are controllable quantum systems that can be used to mimic other
quantum systems. They have the potential to enable the tackling of problems that are …

Multiphoton interference reveals strictly nonclassical phenomena. Its applications range
from fundamental tests of quantum mechanics to photonic quantum information processing …

The heralded generation of entangled states is a long-standing goal in quantum information
processing, because it is indispensable for a number of quantum protocols,. Polarization …

Optical materials with centrosymmetry, such as silicon and germanium, are unfortunately
absent of second‐order nonlinear optical responses, hindering their developments in …

In the quest to build general-purpose photonic quantum computers, fusion-based quantum
computation has risen to prominence as a promising strategy. This model allows a ballistic …

In recent years, the use of integrated technologies for applications in the field of quantum
information processing and communications has made great progress. The resulting …