Quantum cloning machines and their implementation in physical systems |
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| Authors: | WU Tao Fang Bao-Long Ye Liu |
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| Affiliation: | (a) school of Physics ＆ Material Science, Anhui University, Hefei 230039, China b ) Departmcnt of Mathematics ＆ Physics, Hefei University, Hefei 230022, China) |
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| Abstract: | We review the basic theory of approximate quantum cloning for discrete variables and some schemes for implementing quantum cloning machines.Several types of approximate quantum clones and their expansive quantum clones are introduced.As for the implementation of quantum cloning machines,we review some design methods and recent experimental results. |
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| Keywords: | quantum cloning machine discrete-variable expansive quantum clone implementation |
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