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
收藏
页码：203 / 212
页数：10
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