Complementarity and entanglement in bipartite qudit systems

被引:68
作者
Jakob, Matthias
Bergou, Janos A.
机构
[1] ARC Seibersdorf Res GmbH, A-1220 Vienna, Austria
[2] Univ Sofia, Dept Phys, Sofia 1164, Bulgaria
[3] CUNY Hunter Coll, Dept Phys, New York, NY 10021 USA
来源
PHYSICAL REVIEW A | 2007年 / 76卷 / 05期
关键词
D O I
10.1103/PhysRevA.76.052107
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We consider complementarity in a bipartite quantum system of arbitrary dimensions. Single-partite and bipartite properties turn out as mutually exclusive quantities. The single-partite properties can be related to a generalized predictability and visibility which compose two complementary realities for themselves. These properties combined become mutually exclusive to the genuine quantum mechanical bipartite correlations of the system which can be quantified with the generalized I concurrence that defines a proper entanglement measure. Consequently, the complementary relation quantifies entanglement in the bipartite system. The concept of complementarity determines entanglement as a property which mutually excludes any single-partite reality. As an application, we provide a proper definition of distinguishability in an n-port interferometer.
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页数:15
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