The femtosecond laser direct‐writing (FLDW) of waveguide circuits in glasses has seen
interest from a number of fields over the previous 20 years. It has evolved from a curiosity to …

Since the discovery that tightly focused femtosecond laser pulses can induce a highly
localised and permanent refractive index modification in a large number of transparent …

Nearly 30 years ago, two-photon interference was observed, marking the beginning of a
new quantum era. Indeed, two-photon interference has no classical analogue, giving it a …

The evolution of bosons undergoing arbitrary linear unitary transformations quickly becomes
hard to predict using classical computers as we increase the number of particles and modes …

Estimation of physical quantities is at the core of most scientific research, and the use of
quantum devices promises to enhance its performances. In real scenarios, it is fundamental …

The importance of integrated quantum photonics in the telecom band is based on the
possibility of interfacing with the optical network infrastructure that was developed for …

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 …

The main features of quantum mechanics reside in interference deriving from the
superposition of different quantum states. While current quantum optical technology enables …

Increasing the complexity of quantum photonic devices is essential for many optical
information processing applications to reach a regime beyond what can be classically …

Boson sampling holds the potential to experimentally falsify the extended Church-Turing
thesis. The computational hardness of boson sampling, however, complicates the …