Controlled Remote Preparation of a Two-Qubit State via an Asymmetric Quantum Channel |
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Authors: | WANG Zhang-Yin |
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Affiliation: | Key Laboratory of Optoelectronic Information Acquisition & Manipulation of Ministry of Education of China, School of Physics & Material Science, Anhui University, Hefei 230039, China |
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Abstract: | I present a new scheme for probabilistic remote preparation of a general two-qubit state from a sender to either of two receivers. The quantum channel is composed of a partial entangled tripartite Greenberger-Horne-Zeilinger (GHZ) state and a W-type state. I try to realize the remote two-qubit preparation by using the usual projective measurement and the method of positive operator-valued measure, respectively. The corresponding success probabilities of the scheme with different methods as well as the total classical communicationcost required in this scheme are also calculated. |
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Keywords: | remote state preparation partial entangled Greenberger-Horne-Zeilinger (GHZ) state W-type state projective measurement positive operator-valued measure unitary operation |
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