Abstract We propose a scheme for realizing a controlled teleportation of random $M$-qudit quantum information under the control of $N$ agents. The resource consumption includes a prearranged $(2M + N + 1)$-qudit entangled quantum channel and $(2M + N + 1)\log _2 d$-bit classical communication. And the quantum operations used in the teleportation process are a series of generalized Bell-state measurements, single-qudit measurements, qudit $H$-gates, qudit-Pauli gates and qudit phase gates. It is shown that the original state can be restored by the receiver only on condition that all the agents work in collaboration with each others. If one agent does not cooperate with the other, the original state cannot be fully recovered.
Received: 27 January 2007
Revised: 06 March 2007
Accepted manuscript online:
PACS:
03.67.Lx
(Quantum computation architectures and implementations)
(Entanglement measures, witnesses, and other characterizations)
Fund: Project supported by the Scientific
Research Fund of Hunan
Provincial Education Bureau (Grant No~05B041), the Foundation for
Key Program of Ministry of
Education, China (Grant No~206103),
the Science Foundation for Post Doctorate Research from the Mini
Cite this article:
Zhan Xiao-Gui(詹孝贵), Li Hong-Mei(李红梅), Ji Hua(季花), and Zeng Hao-Sheng(曾浩生) Controlled teleportation of multi-qudit quantum information 2007 Chinese Physics 16 2880
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