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 …

Normalized correlation functions provide expedient means for determining the photon-
number properties of light. These higher-order moments, also called the normalized factorial …

We propose a quantum-enhanced lidar system to estimate a target's radial velocity, which
employs squeezed and frequency-entangled signal and idler beams. We compare its …

The ability to manipulate and measure the time-frequency structure of quantum light is useful
for information processing and metrology. Measuring this structure is also important when …

We propose new methods to characterize the spectral-temporal distribution of single
photons. The presented protocols take advantage of spectral filtering, frequency …

Hong-Ou-Mandel interferometry takes advantage of the quantum nature of two-photon
interference to increase the resolution of precision measurements of time delays. Relying on …

Background: Highly conjugated carbon-based molecules and nanostructures could show
interesting quantum properties for different developments. Quantum emission, encryption …

Frequency correlations are a versatile and powerful tool which can be exploited to perform
spectral analysis of objects whose direct measurement might be unfeasible. This is achieved …

Entangled photons (biphotons) in the time-frequency degree of freedom play a crucial role in
both foundational physics and advanced quantum technologies. Fully characterizing them …

We measure the joint temporal intensity of signal and idler photon pairs generated by
spontaneous four-wave mixing in a silicon nitride microresonator by time-resolved …