点击次数：

论文类型：期刊论文

发表时间：2008-09-01

发表刊物：EUROPEAN PHYSICAL JOURNAL D

收录刊物：SCIE、Scopus

卷号：49

期号：2

页面范围：273-278

ISSN号：1434-6060

摘要：For a tripartite pure state superposed by two individual states, the bipartitely shared entanglement can always be achieved by local measurements of the third party. Consider the different aims of the third party, i.e. maximizing or minimizing the bipartitely shared entanglement, we find bounds on both the possible bipartitely shared entanglement of the superposition state in terms of the corresponding entanglement of the two states being superposed. In particular, by choosing the concurrence as bipartite entanglement measure, we obtain calculable bounds for tripartite (2 circle times 2 circle times n)-dimensional cases.