Abstract In this paper, we present a multi-partner communication network protocol. The supervisor prepares numerous Einstein--Podolsky--Rosen (EPR) pairs and auxiliary qubits. He then performs a controlled-NOT(CNOT) gate operation on one qubit of each EPR pair and an auxiliary, which induces the entanglement between the EPR pair and the auxiliary. The supervisor keeps one qubit sequence in his laboratory and sends the others to the outside world. After security approval, the network can be constructed successfully, which can be applied to quantum secret sharing and quantum secure direct communication.
Received: 17 November 2007
Revised: 09 December 2007
Accepted manuscript online:
(Quantum computation architectures and implementations)
Cite this article:
Xiu Xiao-Ming (修晓明), Dong Li (董 莉), Gao Ya-Jun (高亚军), Chi Feng (迟 锋) Construction and application of multi-partner communication network 2008 Chin. Phys. B 17 3991
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