Since its discovery, quantum entanglement has challenged some of the best established
views of the world: locality and reality. Quantum technologies promise to revolutionize …

The quest towards the integration of ultra-fast, high-precision optical clocks is reflected in the
large number of high-impact papers on the topic published in the last few years. This interest …

Quantum metrology is one of the most promising applications of quantum technologies. The
aim of this research field is the estimation of unknown parameters exploiting quantum …

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

Single photons with helical phase structures may carry a quantized amount of orbital
angular momentum (OAM), and their entanglement is important for quantum information …

The energy costs associated with separating tightly bound excitons (photoinduced electron-
hole pairs) and extracting free charges from highly disordered low-mobility networks …

As they travel through space, some light beams rotate. Such light beams have angular
momentum. There are two particularly important ways in which a light beam can rotate: if …

We report on a high-intensity source of polarization-entangled photon pairs with high
momentum definition. Type-II noncollinear phase matching in parametric down conversion …

A two-photon optical imaging experiment was performed based on the quantum nature of
the signal and idler photon pairs produced in spontaneous parametric down-conversion. An …

Quantum communication, and indeed quantum information in general, has changed the way
we think about quantum physics. In 1984 and 1991, the first protocol for quantum …