Measures of entanglement based on decoherence

被引：6

作者：

Blanchard, P ^{[1
]}

Jakóbczyk, L

Olkiewicz, R

机构：

[1] Univ Bielefeld, Fac Phys & BiBoS, D-4800 Bielefeld, Germany

[2] Univ Wroclaw, Inst Theoret Phys, PL-50204 Wroclaw, Poland

来源：

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL | 2001年 / 34卷 / 41期

关键词：

D O I：

10.1088/0305-4470/34/41/308

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

New measures of entanglement-the time of disentanglement and the rate of decoherence-of states of a compound system are proposed. They are based on the dynamical properties of the system induced by the measurement-like interaction with an environment. In particular, it is shown that in the case of two qubits the time of disentanglement may serve as a practical measure of entanglement of mixed states.

引用

页码：8501 / 8516

页数：16