Distillability and partial transposition in bipartite systems -: art. no. 062313

被引:155
作者
Dür, W
Cirac, JI
Lewenstein, M
Bruss, D
机构
[1] Univ Innsbruck, Inst Theoret Phys, A-6020 Innsbruck, Austria
[2] Leibniz Univ Hannover, Inst Theoret Phys, D-30167 Hannover, Germany
来源
PHYSICAL REVIEW A | 2000年 / 61卷 / 06期
关键词
D O I
10.1103/PhysRevA.61.062313
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We study the distillability of a certain class of bipartite density operators which can be obtained via depolarization starting from an arbitrary one. Our results suggest that nonpositivity of the partial transpose of a density operator is not a sufficient condition for distillability, when the dimension of both subsystems is higher than 2.
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页数:8
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