An efficient scheme for five-party quantum state sharing of an arbitrary m-qubit state using multiqubit cluster states |
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Authors: | Kui Hou Guo-Hong Liu Xue-Yong Zhang Shou-Qi Sheng |
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Affiliation: | 1. Department of Mathematics and Physics, Anhui University of Architecture, Hefei, 230601, China
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Abstract: | We present an efficient scheme for five-party quantum state sharing (QSTS) of an arbitrary m-qubit state with multiqubit cluster states. Unlike the three-partite QSTS schemes using the same quantum channel Phys. Rev.
A 78, 062333 (2008)], our scheme for sharing of quantum information among five parties utilizing a cluster state as an entangled
resource. It is found that the six-partite cluster state can be used for QSTS of an entangled state, the five-partite cluster
state can be used for QSTS of an arbitrary two-qubit state and also can be used for QSTS of an arbitrary m-qubit state. It involves two-qubit Bell-basis or three-qubit GHZ-basis measurements, not multipartite joint measurements,
which makes it more convenient than some previous schemes. In addition, the total efficiency really approaches the maximal
value. |
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Keywords: | |
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