The relation of genuine multiqubit entanglement and controlled teleportation

Details The relation of genuine multiqubit entanglement and controlled teleportation The relation of genuine multiqubit entanglement and controlled teleportation

2009-11-20

arxiv.org/abs/0911.3949v1

Physics

Quantum Physics

Scientific paper

Recently, Paolo Facchi et al. [Phys. Rev. A. 77, 060304 (R) (2008)] introduced the notion of maximally multipartite entangled states of n qubits. Here, we give a criterion for faithful controlled teleportation of an arbitrary two-qubit state via a five-qubit entangled state and obtain the general relation between the genuine five-qubit entangled state and controlled teleportation. This criterion can be extended to teleportation of an arbitrary N-qubit state using 2N+1-qubit entangled state. Furthermore, we study the optimal match of measuring basis and quantum channel.

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