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量子通信是量子物理与信息科学的交叉学科,在实现信息的无条件安全传送、量子信息的操控、传递等方面具有重要的应用。课题组主要开展量子通信方面的实验和理论研究,针对量子通信的新原理、新方法进行探索和研究,并由此发展量子通信的相关新技术,研制相关原理型器件,推进量子通信的发展和实用化。近期的研究方向:连续变量量子保密通信;腔量子光力;光场量子态工程和操控。

最新工作

Quantum random number generator with discarding-boundary-bin measurement and multi-interval sampling


Authors:Zhenguo Lu, Jianqiang Liu, Xuyang Wang, Pu Wang, Yongmin Li, and Kunchi Peng

A quantum random number generator (QRNG) provides a reliable means for the generation of true random numbers. The inherent randomness of the vacuum fluctuations makes the quantum vacuum state a superior source of entropy.


Efficient FPGA implementation of high-speed true random number generator


Authors:Zhenguo Lu, Shenshen Yang, Jianqiang Liu, Xuyang Wang, and Yongmin Li

High-speed true random number generator is a building block in the modern information security system. We propose and demonstrate an efficient high-speed true random number generator based on....

An FPGA-Based LDPC Decoder With Ultra-Long Codes for Continuous-Variable Quantum Key Distribution


Authors:Shenshen Yang, Jianqiang Liu, Zhenguo Lu, Zengliang Bai, Xuyang Wang, and Yongmin Li

In this paper, we propose a good decoding performance, low-complexity, and high-speed decoder architecture for ultra-long quasi-cyclic LDPC codes by using the layered sum-product decoding scheme.