Zhou Yilin

TL;DR: This work reports the development and launch of a low-Earth-orbit satellite for implementing decoy-state QKD—a form ofQKD that uses weak coherent pulses at high channel loss and is secure because photon-number-splitting eavesdropping can be detected.

TL;DR: Satellite-based distribution of entangled photon pairs to two locations separated by 1203 kilometers on Earth, through two satellite-to-ground downlinks is demonstrated, with a survival of two-photon entanglement and a violation of Bell inequality.

TL;DR: In this article, a satellite-based distribution of entangled photon pairs to two locations separated by 1203 km on the Earth, through satellite-to-ground two-downlink with a sum of length varies from 1600 km to 2400 km.

TL;DR: In this paper, a ground testing method of the satellite-earth double-light-path alignment is proposed for a quantum satellite on-orbit critical performance index ground verification test; the effectiveness of the ground test is ensured.

TL;DR: In this article, a satellite-ground dual-optical-path alignment system with a quantum entanglement source, a quantum key communication processor, and two quantum communication devices is presented.