There is a large body of evidence for the potential of greater computational power using
information carriers that are quantum mechanical over those governed by the laws of …

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 …

This article reviews recent progress in quasi-phasematched $\chi^{(2)} $ nonlinear
nanophotonics, with a particular focus on dispersion-engineered nonlinear interactions …

We investigate the quantification of coherence in the infinite-dimensional systems, and
especially, we focus on the infinite-dimensional bosonic systems in the Fock space. We find …

We derive a bound on the ability of a linear-optical network to estimate a linear combination
of independent phase shifts by using an arbitrary nonclassical but unentangled input state …

Boson sampling is a problem strongly believed to be intractable for classical computers, but
can be naturally solved on a specialized photonic quantum simulator. Here, we implement …

Quantum interference of two independent particles in pure quantum states is fully described
by the particles' distinguishability: the closer the particles are to being identical, the higher …

The identification of phenomena able to pinpoint quantum interference is attracting large
interest. Indeed, a generalization of the Hong–Ou–Mandel effect valid for any number of …

Photon blockade is an effective way to generate single photon, which is of great significance
in quantum state preparation and quantum information processing. Here we investigate the …

Silicon photonics is a technology based on fabricating integrated optical circuits by using the
same paradigms as the dominant electronics industry. After twenty years of fervid …