Controlled Joint Remote Preparation of a Six-Qubit Cluster-Type State by Using GHZ States |
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Authors: | Nie Yi-you Qiao Yi Li Yuan-hua Sang Ming-huang |
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Affiliation: | 1.Department of physics, Jiangxi Normal University, Nanchang, 330022, China ;2.Key Laboratory of Optoelectronic and Telecommunication of Jiangxi province, Nanchang, 330022, China ; |
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Abstract: | A scheme for the controlled joint remote preparation of an arbitrary six-qubit cluster-type state by using only two sets of five-qubit GHZ states as quantum channel is proposed. In our scheme, Alice firstly performs two sets of two-qubit projective measurement according to the real coefficients and the complex coefficients of the desired six-qubit cluster-type state. Then, the controller Charlie must apply another two-qubit projective measurement according to the Alice’s measurement result. Finally, Bob can obtain the desired six-qubit cluster-type state according to an appropriate unitary operation. Our scheme can achieve unit success probability. |
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