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论文类型：期刊论文

发表时间：2014-12-04

发表刊物：EUROPEAN PHYSICAL JOURNAL D

收录刊物：SCIE、Scopus

卷号：68

期号：12

ISSN号：1434-6060

摘要：In this paper, we study the entanglement and quantum discord of the output modes in the unified 1 -> 2 state-dependent cloning and probabilistic quantum cloning. The tripartite entanglement among the output modes and the quantum cloning machine is also considered. We find that the roles of the quantum correlations including the bipartite and tripartite entanglement and quantum discord strongly depend on the quantum cloning machines as well as the cloned state. In particular, it is found that this quantum cloning scheme can be realizable even without any quantum correlation.