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The role of priori knowledge in quantum information processing is explored by investigating probabilistic remote state preparation in this paper. For a case study, a comparison has been made among three efficient schemes, which are used to perform the remote preparation of an arbitrary quantum state. The comparison results indicate that one can take(More)
In this paper, we explicitly explore how to manipulate single qubits by one-rotation controls under various manipulation conditions. It is revealed that one can construct control Hamiltonian and adjust the control to manipulate quantum states. Furthermore, we comprehensively discuss how to optimize control magnitude in terms of a new kind of weighted(More)
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