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

doi:10.1088/1674-1056/26/6/060304

Abstract 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.

Keywords: quantum access network chaotic phase shifter code division multiple access

Received: 02 January 2017
Revised: 13 February 2017
Accepted manuscript online:

PACS:	03.67.-a	(Quantum information)
	42.50.-p	(Quantum optics)
	42.50.Ex	(Optical implementations of quantum information processing and transfer)

Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 61475099 and 61102053), the Program of State Key Laboratory of Quantum Optics and Quantum Optics Devices (Grant No. KF201405), the Open Fund of IPOC (BUPT) (Grant No. IPOC2015B004), and the Program of State Key Laboratory of Information Security (Grant No. 2016-MS-05).

Corresponding Authors: Guangqiang He
E-mail: gqhe@sjtu.edu.cn

Cite this article:

Linxi Hu(胡林曦), Can Yang(杨灿), Guangqiang He(何广强) Performance analysis of quantum access network using code division multiple access model 2017 Chin. Phys. B 26 060304

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