Controlled Teleportation of Multi-qudit Quantum Information by Entanglement Swapping |
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| Authors: | DONG Jian TENG Jian-Fu WANG Shu-Yan |
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| Affiliation: | 1.School of Electronic Information Engineering, Tianjin University, Tianjin 300072, China;2.Tianjin Key Lab for Advanced Signal Processing, Civil Aviation University of China, Tianjin 300300, China |
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| Abstract: | In this paper, we present a scheme for teleporting multi-qudit quantum state, from the sender Alice to the receiver Charlie via many controllers Bobs, whose control parameters are obtained using entanglement swapping of maximally d-dimensional EPR pair. In our scheme, Yang's qutrit controlled teleportation protocol[Commun. Theor. Phys. 49 (2008) 338] based on Bell-state entanglementswapping is generalized to the qudit case. The scheme of multi-qudit owns the advantage of having higher code capacity and better security than that of multi-qutrit. |
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| Keywords: | quantum controlled teleportation multi-qudit quantum information EPR pair entanglement swapping |
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