| 无相互作用的量子克隆机 |
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| 引用本文： | 吴雷,朱爱东. 无相互作用的量子克隆机[J]. 延边大学学报(自然科学版), 2011, 37(1): 11-18,23 |
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| 作者姓名： | 吴雷 朱爱东 |
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| 作者单位： | 延边大学理学院,物理系,吉林,延吉,133002 |
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| 基金项目： | 延边大学科研项目基金(延边大学研科合字 |
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| 摘 要： | 通过量子Zeno效应的无相互作用测量,提出了1→2经济型相位协变克隆机和1→3无辅助粒子的相位协变克隆机的实现方案.文中构建的量子克隆机与以往的方法相比结构简单,并有很高的成功几率,而且即使在外部有很强的环境干扰的情况下,仍然可以获得与克隆机最优值非常接近的保真度.
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| 关 键 词： | 量子Zeno效应 无相互作用测量 相位协变克隆 |
Interaction-free Quantum Cloning Machine |
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| WU Lei,ZHU Ai-dong. Interaction-free Quantum Cloning Machine[J]. Journal of Yanbian University (Natural Science), 2011, 37(1): 11-18,23 |
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| Authors: | WU Lei ZHU Ai-dong |
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| Affiliation: | (Department of Physics,College of Sciences,Yanbian University,Yanji 133002,China) |
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| Abstract: | The schemes of 1→2 economical phase-covariant quantum cloning machine and 1→3 ancilla-free optimal phase-covariant quantum cloning machine are proposed by using the interaction free measurement（IFM）.We constructed the quantum cloning machine with a simple quantum circuit and a higher probability of success compared to previous methods.We also find that even under the case that the IFM gate is imperfect,we can still get a very high value of fidelity extremely closed to the optimal one,which is very useful for experiment. |
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| Keywords: | quantum Zeno effect interaction free measurement phase-covariant cloning |
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