Informazione Quantistica

Quantum Nonlinear Optics in Integrated Devices

by Marco Liscidini (Dipartimento di Fisica, Università di Pavia)

Europe/Rome
Aula 5 (Dip. di Fisica - Edificio E. Fermi)

Aula 5

Dip. di Fisica - Edificio E. Fermi

Description
There is a burgeoning interest in the study of parametric fluorescence in integrated devices to obtain compact and efficient sources of non-classical states of light, which are necessary toward the full integration of quantum optical devices. As in the case of quantum linear optics, the use of microstructures gives the opportunity for investigating “new” phenomena that would be hardly observable in larger bulk-crystal sources. Yet, integrated sources present also several challenges, such as their efficient and fast characterization, which is typically quite demanding because of their low external brightness. In this talk, I will review all these points, starting with the recent demonstration of silicon microring resonators as CMOS compatible room-temperature sources of time-energy entangled photon pairs.