Speaker
Yen-An Shih
(National Tsing Hua University)
Description
Quantum key distribution (QKD) aims to provide an information theoretically secure way to distribute secret keys. However, practical devices may not follow the theoretical assumptions, which leaves a backdoor for eavesdropper to exploit. Single photon detectors are considered to be the most vulnerable part in QKD systems. Measurement device independent (MDI) protocol provides a way to remove all detector side channels by introducing an untrusted relay performing Bell-state measurement jointly on the prepared states. The relay can also serve as the central node of a quantum network, which allows quantum communication without trusted relay or point-to-point communication which is hard to scale up.
Primary author
Yen-An Shih
(National Tsing Hua University)
