Controlled quantum state sharing of arbitrary two-qubit states with five-qubit cluster states |
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| Authors: | Wang Dong Zha Xin-Wei Lan Qian Li Ning Wei Jing |
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| Affiliation: | School of Science, Xi'an University of Posts and Telecommunications, Xi'an 710061, China;School of Communication and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an 710061, China;. |
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| Abstract: | In this paper, we propose a controlled quantum state sharing scheme to share an arbitrary two-qubit state using a five-qubit cluster state and the Bell state measurement. In this scheme, the five-qubit cluster state is shared by a sender (Alice), a controller (Charlie), and a receiver (Bob), and the sender only needs to perform the Bell-state measurements on her particles during the quantum state sharing process, the controller performs a single-qubit projective measurement on his particles, then the receiver can reconstruct the arbitrary two-qubit state by performing some appropriate unitary transformations on his particles after he has known the measured results of the sender and the controller. |
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| Keywords: | controlled quantum state sharing five-qubit cluster state Bell-state measurements |
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