Research Director

Akira Furusawa

School of Engineering, the University of Tokyo
Professor
website

Outline

Information is usually encoded on amplitude for conventional optical communications. Recently coherent communication is expected as next-generation optical communication, which encodes information on phase as well and gives us more channel capacity theoretically up to the classical limit (Shannon limit). In this project, we will pursuit “ultimate” coherent communication, which gives us channel capacity beyond the Shannon limit. We will make a quantum-mechanical operation at the receiving station of coherent communication and extract information beyond the Shannon limit. For that purpose, we will develop the technologies of the quantum-mechanical operations, superconducting photon-number-resolving detectors, and waveguide circuits.