Prof. Virginia D’Auria
Virginia D'Auria's research focuses on the field of quantum communication. By exploiting the quantum properties of light, this field promises a real paradigm shift in information processing and communication. Her work covers the two main operating regimes of photonics-based quantum technologies, i.e. discrete variables (equivalent to digital coding) and ontinuous variables (equivalent to analogue coding). In recent years, she has been responsible for a project on the "universal" synchronisation of quantum networks, which she was able to prove with quantum light sources spaced 100 km apart and operating at ultra-fast rates. She is also developing a line of research on quantum optics with continuous variables, exploiting guided and integrated photonics on various materials of choice. It is also interested in the generation, manipulation and exploitation of hybrid quantum states, which combine tools and concepts from the discrete and continuous regimes, with great potential for the development of tomorrow's quantum networks.
Guided-wave solutions for the generation and manipulation of quantum light
Integrated optical components play a major role in standard high-speed communication systems. In particular, over the last two decades, lithium niobate waveguide architectures have emerged as one of the key platforms for enabling photonics quantum technologies, due to mature technological processes for waveguide structure integration, as well as inherent and efficient properties for nonlinear optical effects. I will explain how lithium niobate devices are employed for photon-pair or triplet sources, coherent wavelength-conversion interfaces, and squeezed light generation and manipulation, including in hybrid configurations. I will first introduce the material aspects of lithium niobate, and subsequently discuss all of the above mentioned quantum components, ranging from standard photon-pair sources (concept and experimental realizations) to more complex and