Quantum internet using code division multiple access

Details Quantum internet using code division multiple access Quantum internet using code division multiple access

2012-04-08

arxiv.org/abs/1204.1742v1

Physics

Quantum Physics

5 pages, 3 figures

Scientific paper

Code division multiple access (CDMA) is a spread-spectrum technology, in which a code is used to spread the spectral content of information to achieve larger network capacity. It has been widely used in classical communication and wireless networks. Here, we extend CDMA to the quantum case, where many pairs of nodes can transmit quantum information through a shared channel. This can be achieved by chaotic encoding of quantum information to spread its spectral content and by chaos synchronization, to separate different sender-receiver pairs. The proposed method is robust to low-frequency noise, and achieves faithful transmission with fidelities of up to 0.99.

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