Zhang-yin Wang

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An efficient protocol for remotely preparing an arbitrary three-qubit state is devised with a four-qubit cluster state and an Einstein–Podolsky–Rosen state as the shared quantum resource. Using an appropriate set of eight-qubit mutually orthogonal measurement basis, the remote three-qubit preparation is successfully completed with the probability of 8 in(More)
A three-party scheme for securely sharing an arbitrary unknown single-qutrit state is presented. Using a general Greenberger-Horne-Zeilinger (GHZ) state as the quantum channel among the three parties, the quantum information (i.e., the qutrit state) from the sender can be split in such a way that the information can be recovered if and only if both(More)
I present a new scheme for probabilistic remote preparation of a general two-qubit state by using twoW-type states as the shared quantum channel and a proper POVM instead of the usual positive measurement. Also I explore the scheme’s applications to five special ensembles of two-qubit states. The success probability and the classical communication cost in(More)
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