Scheme for assisted cloning an unknown arbitrary three-qubit state

Scheme for assisted cloning an unknown arbitrary three-qubit state We present a scheme for perfect cloning or orthogonal complementing an unknown arbitrary three-qubit state with assistance. This cloning scheme is divided into two stages. In the first stage, the initial state can be teleported from a sender to a receiver probabilistically via three partially entangled states. In the second stage, the exact copying and orthogonal complementing of the three-qubit state can be created with unity fidelity in a probabilistic manner with the state preparer performing an appropriate tri-particle projective measurement. It is shown that for some special ensembles of the three-qubit state our assisted cloning scheme can be achieved exactly and deterministically. Quantum Information Processing Springer Journals

Scheme for assisted cloning an unknown arbitrary three-qubit state

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Springer US
Copyright © 2010 by Springer Science+Business Media, LLC
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
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