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

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

Field-orthogonal temporal modes of photonic quantum states provide a new framework for
quantum information science (QIS). They intrinsically span a high-dimensional Hilbert space …

Conventional spectroscopy uses classical light to detect matter properties through the
variation of its response with frequencies or time delays. Quantum light opens up new …

Entangled photon pairs are a critical resource in quantum communication protocols ranging
from quantum key distribution to teleportation. The current workhorse technique for …

The creation of increasingly large multipartite entangled states is not only a fundamental
scientific endeavour in itself,,, but is also the enabling technology for quantum information …

Entangled photon sources are desirable and key elements for photonic quantum information
processing. The spontaneous parametric down‐conversion (SPDC) process is a convenient …

The recent launch of the Micius quantum-enabled satellite heralds a major step forward for
long-range quantum communication. Using single-photon discrete-variable quantum states …

We examine the quantum structure of continuum entanglement and in the context of short-
pulse down-conversion we answer the open question of how many of the uncountably many …

Multiphoton states constructed from photon pairs generated in the process of spontaneous
parametric down-conversion possess frequency and space-time correlations that may carry …