Efficient many-party controlled teleportation of multi-qubit quantum information via entanglement

Details Efficient many-party controlled teleportation of multi-qubit quantum information via entanglement Efficient many-party controlled teleportation of multi-qubit quantum information via entanglement

2004-02-19

arxiv.org/abs/quant-ph/0402138v2

Physical Review A 70, 022329 (2004)

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.70.022329

We present a way to teleport multi-qubit quantum information from a sender to a distant receiver via the control of many agents in a network. We show that the original state of each qubit can be restored by the receiver as long as all the agents collaborate. However, even if one agent does not cooperate, the receiver can not fully recover the original state of each qubit. The method operates essentially through entangling quantum information during teleportation, in such a way that the required auxiliary qubit resources, local operation, and classical communication are considerably reduced for the present purpose.

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