Spatial correlations between two photons are the key resource in realising many quantum
imaging schemes. Measurement of the bi-photon correlation map is typically performed …

Single-photon avalanche diode (SPAD) arrays are essential tools in biophotonics, optical
ranging and sensing, and quantum optics. However, their small number of pixels, low …

Quantum resources can provide supersensitive performance in optical imaging. Detecting
entangled photon pairs from spontaneous parametric down conversion (SPDC) with single …

Single-photon avalanche diode arrays can provide both the spatial and temporal information
of each detected photon. We present here the characterization of spatially entangled …

High-dimensional entanglement is a promising resource for quantum technologies. Being
able to certify it for any quantum state is essential. However, to date, experimental …

Quantum Entanglement is widely regarded as one of the most prominent features of
quantum mechanics and quantum information science. Although, photonic entanglement is …

Temporal photon correlation measurement, instrumental to probing the quantum properties
of light, typically requires multiple single photon detectors. Progress in single photon …

The light produced by parametric down-conversion shows strong spatial entanglement that
leads to violations of EPR criteria for separability. Historically, such studies have been …

Here we report the first demonstration of entanglement distribution over a record distance of
200 km which is of sufficient fidelity to realize secure communication. In contrast to previous …

Entangled states of light are essential for quantum technologies and fundamental tests of
physics. Current systems rely on entanglement in 2D degrees of freedom, eg, polarization …