Recovering quantum correlations from amplitude damping decoherence by weak measurement reversal

被引：30

作者：

Li, Yan-Ling ^{[1
]}

Xiao, Xing ^{[2
]}

机构：

[1] Jiangxi Univ Sci & Technol, Sch Informat Engn, Ganzhou 341000, Peoples R China

[2] Gannan Normal Univ, Coll Phys & Elect Informat, Ganzhou 341000, Peoples R China

来源：

QUANTUM INFORMATION PROCESSING | 2013年 / 12卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Quantum correlations; Amplitude damping decoherence; Weak measurement reversal; SUDDEN-DEATH; ENTANGLEMENT; STATE;

D O I：

10.1007/s11128-013-0585-x

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider a weak measurement reversal proposal to recover quantum correlations of two-qubit system under local amplitude damping channels. With weak measurement reversal, we show that quantum correlations do not vanish but preserve a finite value in the limit of the noise strength p -> 1, which can be attributed to the probabilistic nature of this method. The experimental feasibility of this approach is also discussed in pure optical systems.

引用

页码：3067 / 3077

页数：11

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