| Probabilistic Cloning and Quantum Computation |
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| 作者姓名： | GAOTing YANFeng-Li WANGZhi-Xi |
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| 作者单位： | [1]CollegeofMathematicsandInformationScience,HebeiNormalUniversity,Shijiazhuang050016 [2]CCAST（WorldLabora,tory）,POBox8730,Beijing100080 [3]DepartmentofMathematics,CapitalNormalUniversity,Beijing100037 |
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| 摘 要： | We discuss the usefulness of quantum cloning and present examples of quantum computation tasks for which thecloning offers an advantage which cannot be matched by any approach that does not resort to quantum cloning.In these quantum computations, we need to distribute quantum information contained in the states about whichwe have some partial information. To perform quantum computations, we use a state-dependent probabilistic quantum cloning procedure to distribute quantum information in the middle of a quantum computation.
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| 关 键 词： | 量子计算 概率无性繁殖 经典信息理论 黑箱理论 量子无性繁殖 |
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