Article ID Journal Published Year Pages File Type
852293 Optik - International Journal for Light and Electron Optics 2010 5 Pages PDF
Abstract

A scheme of quantum network based on multiuser differential phase shift quantum key distribution system (DPS–QKD) is proposed. In this quantum network, arbitrary two users can achieve secret bits sharing by point-to-multipoint quantum key distribution and secret bits comparison. A protocol of secret bits sharing between arbitrary two users is presented. This network can implement secret bits distribution over 200 km with higher key generation rate by today's technologies. In theory, the capacity of user numbers in this network is unlimited. Hence, our proposed quantum network can serve for a metropolitan QKD network. A wide area QKD network can be constructed with this metropolitan QKD network.

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Physical Sciences and Engineering Engineering Engineering (General)
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