Integrated sources of entangled photons at telecom wavelength in femtosecond-laser-written circuits just published in Optica!

Photon entanglement is at the basis of many protocols in photonic quantum technologies, from quantum computing to simulation and sensing. The generation of entangled photons in integrated waveguides is particularly advantageous due to the enhanced stability and more efficient nonlinear interaction. Here we realize an integrated source of entangled wavelength-degenerate photons based on the hybrid … Continua a leggere

Experimental statistical signature of many-body quantum interference published in Nature Photonics!

Multi-particle interference is an essential ingredient for fundamental quantum mechanics phenomena and for quantum information processing to provide a computational advantage, as recently emphasized by boson sampling experiments. Hence, developing a reliable and efficient technique to witness its presence is pivotal in achieving the practical implementation of quantum technologies. Here, we experimentally identify genuine many-body … Continua a leggere

Code of Ethics for Researchers

The universal Code of Ethics for Researchers has been launched at World Economic Forum 2018 #WEF2018 #davos Very glad to have contributed as member of the Young Scientist community! The World Economic Forum Young Scientists Community — a group of leading researchers under the age of 40 from diverse fields and all regions of the … Continua a leggere

Experimental learning of quantum states

The number of parameters describing a quantum state is well known to grow exponentially with the number of particles. This scaling clearly limits our ability to do tomography to systems with no more than a few qubits and has been used to argue against the universal validity of quantum mechanics itself. However, from a computational learning theory perspective, it … Continua a leggere

Photonic Simulation of Entanglement Growth and Engineering after a Spin Chain Quench published in Nature Communications

The time evolution of quantum many-body systems is one of the most important processes for benchmarking quantum simulators. The most curious feature of such dynamics is the growth of quantum entanglement to an amount proportional to the system size (volume law) even when interactions are local. This phenomenon has great ramifications for fundamental aspects, while … Continua a leggere