The generation and long-haul transmission of highly entangled photon pairs is a
cornerstone of emerging photonic quantum technologies with key applications such as …

Spontaneous photon emission can be drastically modified by placing quantum emitters
(QEs) in nanostructured environment, resulting in dramatically enhanced emission rates due …

Semiconductor quantum dots are capable of emitting polarization entangled photon pairs
with ultralow multipair emission probability even at maximum brightness. Using a quantum …

Structured light has become topical of late, where controlling light in all its degrees of
freedom has offered novel states of light long predicted, enhanced functionality in …

Photosynthesis is generally assumed to be initiated by a single photon,–from the Sun,
which, as a weak light source, delivers at most a few tens of photons per nanometre squared …

Quantum cryptography harnesses quantum light, in particular single photons, to provide
security guarantees that cannot be reached by classical means. For each cryptographic task …

A high-flux entangled-photon source is a key resource for quantum optical study and
application. Here, it is realized in a lithium niobate on isolator (LNOI) chip, with 2.79× 10 11 …

Quantum key distribution (QKD) enables the transmission of information that is secure
against general attacks by eavesdroppers. The use of on-demand quantum light sources in …

This Perspective presents an overview on the epitaxial growth and optical properties of
GaAs quantum dots obtained with the droplet etching method as high-quality sources of …

Spontaneous parametric down-conversion (SPDC) is one of the most versatile nonlinear
optical techniques for the generation of entangled and correlated single-photon pairs …