Quantum sensing has become a broad field. It is generally related with the idea of using
quantum resources to boost the performance of a number of practical tasks, including the …

The production of pairs of entangled photons simply by focusing a laser beam onto a crystal
with a nonlinear optical response was used to test quantum mechanics and to open new …

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 …

Isolating single molecules in the solid state has allowed fundamental experiments in basic
and applied sciences. When cooled down to liquid helium temperature, certain molecules …

Rayleigh's criterion for resolving two incoherent point sources has been the most influential
measure of optical imaging resolution for over a century. In the context of statistical image …

Modern imaging technologies are widely based on classical principles of light or
electromagnetic wave propagation. They can be remarkably sophisticated, with recent …

Quantum metrology provides a route to overcome practical limits in sensing devices. It holds
particular relevance to biology, where sensitivity and resolution constraints restrict …

The principles of quantum optics have yielded a plethora of ideas to surpass the classical
limitations of sensitivity and resolution in optical microscopy. While some ideas have been …

In previous years the possibility of creating and manipulating quantum states of light has
paved the way for the development of new technologies exploiting peculiar properties of …

We determine the ultimate potential of quantum imaging for boosting the resolution of a far-
field, diffraction-limited, linear imaging device within the paraxial approximation. First, we …