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

The ability to generate complex optical photon states involving entanglement between
multiple optical modes is not only critical to advancing our understanding of quantum …

Integrated optics provides a versatile platform for quantum information processing and
transceiving with photons,,,,,,–. The implementation of quantum protocols requires the …

The ability to process optical signals without passing into the electrical domain has always
attracted the attention of the research community. Processing photons by photons unfolds …

Assisted by the rapid development of photonic integrated circuits, scalable and versatile chip-
based quantum light sources with nonlinear optics are increasingly tangible for real-world …

We demonstrate that an integrated silicon microring resonator is capable of efficiently
producing photon pairs that are completely unentangled; such pairs are a key component of …

Integrated optical devices will play a central role in the future development of nonlinear
quantum photonics. Here we consider the generation of nonclassical states of light within …

Silicon photonics is a technology based on fabricating integrated optical circuits by using the
same paradigms as the dominant electronics industry. After twenty years of fervid …

We report an efficient energy-time entangled photon-pair source based on four-wave mixing
in a CMOS-compatible silicon photonics ring resonator. Thanks to suitable optimization, the …

Quantum measurements using single-photon detectors are opening interesting new
perspectives in diverse fields such as remote sensing, quantum cryptography and quantum …