Qutrit entanglement

被引:82
作者
Caves, CM [1 ]
Milburn, GJ
机构
[1] Univ New Mexico, Dept Phys & Astron, Ctr Adv Studies, Albuquerque, NM 87131 USA
[2] Univ Queensland, Dept Phys, Ctr Laser Sci, St Lucia, Qld 4072, Australia
关键词
D O I
10.1016/S0030-4018(99)00693-8
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We consider the separability of various joint states for N qutrits. We derive two results: (i) the separability condition for a two-qutrit state that is a mixture of the maximally mixed state and a maximally entangled state (such a state is a generalization of the Werner state for two qubits); (ii) upper and lower bounds on the size of the neighborhood of separable states surrounding the maximally mixed state for N qutrits. (C) 2000 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:439 / 446
页数:8
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