uri physics colloquium

Quantum Network and Quantum Transduction

Friday, 19 November at 4pm in East Hall Room 112 (in person event)

Dr. Changchun Zhong,

Pritzker School of Molecular Engineering
University of Chicago

abstract

Quantum networks promise a way of connection with unconditional security and fast information processing speed. While on the way of building these distributed quantum architectures, people found quantum transduction is indispensable which aims to convert quantum information between microwave and optical photons. In this talk, I will discuss two major quantum transduction schemes—the direct quantum transduction (DQT) and entanglement-based quantum transduction (EQT)—and compare their differences in the framework of quantum Shannon theory. I will argue EQT yields a quantum channel with quantum capacity larger than that of a DQT channel and it requires less demanding experimental parameters, which is more feasible in the near-term implementations.