Probabilistic cloning of three nonorthogonal states

Probabilistic cloning of three nonorthogonal states We study the probabilistic cloning of three nonorthogonal states with equal success probabilities. For simplicity, we assume that the three states belong to a special set. Analytical form of the maximal success probability for $$M\rightarrow N$$ M → N probabilistic cloning is calculated. With the maximal success probability, we deduce the explicit form of $$M\rightarrow N$$ M → N probabilistic quantum cloning machine. In the case of $$1\rightarrow 2$$ 1 → 2 cloning, we get the unambiguous form of the unitary operation. It is demonstrated that the upper bound for probabilistic quantum cloning machine in (Qiu in J Phys A 35:6931, 2002) can be reached only if the three states are equidistant. Quantum Information Processing Springer Journals

Probabilistic cloning of three nonorthogonal states

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Springer US
Copyright © 2015 by Springer Science+Business Media New York
Physics; Quantum Information Technology, Spintronics; Quantum Computing; Data Structures, Cryptology and Information Theory; Quantum Physics; Mathematical Physics
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    Li, L; Qiu, DW
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    Duan, LM; Guo, GC
  • Local cloning of multipartite entangled states
    Guruprasad, K; Ramij, R

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