Performance analysis of quantum access network using code division multiple access model

• 来源期刊: 中国物理B（英文版）
• 关键词: quantum access network chaotic phase shifter code division multiple access
• 年，卷（期）: 2017,（6）
• 页码范围: 37-41
• 页数: 5页
• 语种: 英文
• DOI: 10.1088/1674-1056/26/6/060304

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.