Optimal Controlled Teleportation

Details Optimal Controlled Teleportation Optimal Controlled Teleportation

2007-10-04

arxiv.org/abs/0710.1055v1

Europhysics Letters, 84 (2008) 50001.

Physics

Quantum Physics

4 pages

Scientific paper

10.1209/0295-5075/84/50001

We give the analytic expressions of maximal probabilities of successfully controlled teleportating an unknown qubit via every kind of tripartite states. Besides, another kind of localizable entanglement is also determined. Furthermore, we give the sufficient and necessary condition that a three-qubit state can be collapsed to an EPR pair by a measurement on one qubit, and characterize the three-qubit states that can be used as quantum channel for controlled teleporting a qubit of unknown information with unit probability and with unit fidelity.

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