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 …

Quantum communication and computing offer many new opportunities for information
processing in a connected world. Networks using quantum resources with tailor-made …

Multipartite entangled states are a fundamental resource for a wide range of quantum
information processing tasks. In particular, in quantum networks, it is essential for the parties …

Scalable quantum computing and communication requires the protection of quantum
information from the detrimental effects of decoherence and noise. Previous work tackling …

Photon pairs produced by parametric down-conversion or four-wave mixing can interfere
with each other in multiport interferometers or carry entanglement between distant nodes for …

Single photons are of paramount importance to future quantum technologies, including
quantum communication and computation. Nonlinear photonic devices using parametric …

We report a bright and tunable source of spectrally pure heralded single photons in the
telecom O-Band, based on cross-polarized four wave mixing in a commercial birefringent …

Entangled photons can be used to make measurements with an accuracy beyond that
possible with classical light. While most implementations of quantum metrology have used …

Optical quantum protocols are reliant on the production of highly pure single photons.
However, most parametric heralded single-photon sources possess spectral correlations …

In this paper we study the generation of photon pairs through the process of spontaneous
four wave mixing (SFWM) in a χ (3) cavity. Our key interest is the generation of photon pairs …