Enhancing entanglement trapping by weak measurement and quantum measurement reversal

被引：24

作者：

Zhang, Ying-Jie ^{[1
,2
]}

Han, Wei ^{[1
]}

Fan, Heng ^{[2
]}

Xia, Yun-Jie ^{[1
]}

机构：

[1] Qufu Normal Univ, Dept Phys, Shandong Prov Key Lab Laser Polarizat & Informat, Qufu 273165, Peoples R China

[2] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

来源：

ANNALS OF PHYSICS | 2015年 / 354卷

基金：

中国国家自然科学基金;

关键词：

Open system; Pseudomode method; Entanglement trapping; Weak measurement; Quantum measurement reversal; Band gap model; DECOHERENCE-FREE SUBSPACES; PHOTONIC BAND-GAP; SPONTANEOUS EMISSION; SUDDEN-DEATH; STATES; PURIFICATION; COMPUTATION; CAVITY; SYSTEM; ATOMS;

D O I：

10.1016/j.aop.2014.12.010

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, we propose a scheme to enhance trapping of entanglement of two qubits in the environment of a photonic band gap material. Our entanglement trapping promotion scheme makes use of combined weak measurements and quantum measurement reversals. The optimal promotion of entanglement trapping can be acquired with a reasonable finite success probability by adjusting measurement strengths. (C) 2015 Elsevier Inc. All rights reserved.

引用

页码：203 / 212

页数：10

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