中国物理B ›› 2017, Vol. 26 ›› Issue (6): 60304-060304.doi: 10.1088/1674-1056/26/6/060304
Performance analysis of quantum access network using code division multiple access model
Linxi Hu(胡林曦), Can Yang(杨灿), Guangqiang He(何广强)
- 1 State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
2 State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China;
3 State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100093, China
Performance analysis of quantum access network using code division multiple access model
Linxi Hu(胡林曦)1, Can Yang(杨灿)1, Guangqiang He(何广强)1,2,3
- 1 State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;
2 State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China;
3 State Key Laboratory of Information Security, Institute of Information Engineering, Chinese Academy of Sciences, Beijing 100093, China
摘要： A quantum access network has been implemented by frequency division multiple access and time division multiple access, while code division multiple access is limited for its difficulty to realize the orthogonality of the code. Recently, the chaotic phase shifters were proposed to guarantee the orthogonality by different chaotic signals and spread the spectral content of the quantum states. In this letter, we propose to implement the code division multiple access quantum network by using chaotic phase shifters and synchronization. Due to the orthogonality of the different chaotic phase shifter, every pair of users can faithfully transmit quantum information through a common channel and have little crosstalk between different users. Meanwhile, the broadband spectra of chaotic signals efficiently help the quantum states to defend against channel loss and noise.
中图分类号: (Quantum information)
- 03.67.-a