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Title: Enhancing entanglement trapping by weak measurement and quantum measurement reversal

Abstract

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. - Highlights: • Propose a scheme to enhance entanglement trapping in photonic band gap material. • Weak measurement and its reversal are performed locally on individual qubits. • Obtain an optimal condition for maximizing the concurrence of entanglement trapping. • Entanglement sudden death can be prevented by weak measurement in photonic band gap.

Authors:
 [1];  [2];  [1];  [3];  [1]
  1. Shandong Provincial Key Laboratory of Laser Polarization and Information Technology, Department of Physics, Qufu Normal University, Qufu 273165 (China)
  2. (China)
  3. Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 (China)
Publication Date:
OSTI Identifier:
22447602
Resource Type:
Journal Article
Resource Relation:
Journal Name: Annals of Physics; Journal Volume: 354; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BAND THEORY; QUANTUM ENTANGLEMENT; QUBITS; TRAPPING

Citation Formats

Zhang, Ying-Jie, E-mail: qfyingjie@iphy.ac.cn, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, Han, Wei, Fan, Heng, E-mail: hfan@iphy.ac.cn, and Xia, Yun-Jie, E-mail: yjxia@mail.qfnu.edu.cn. Enhancing entanglement trapping by weak measurement and quantum measurement reversal. United States: N. p., 2015. Web. doi:10.1016/J.AOP.2014.12.010.
Zhang, Ying-Jie, E-mail: qfyingjie@iphy.ac.cn, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, Han, Wei, Fan, Heng, E-mail: hfan@iphy.ac.cn, & Xia, Yun-Jie, E-mail: yjxia@mail.qfnu.edu.cn. Enhancing entanglement trapping by weak measurement and quantum measurement reversal. United States. doi:10.1016/J.AOP.2014.12.010.
Zhang, Ying-Jie, E-mail: qfyingjie@iphy.ac.cn, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, Han, Wei, Fan, Heng, E-mail: hfan@iphy.ac.cn, and Xia, Yun-Jie, E-mail: yjxia@mail.qfnu.edu.cn. Sun . "Enhancing entanglement trapping by weak measurement and quantum measurement reversal". United States. doi:10.1016/J.AOP.2014.12.010.
@article{osti_22447602,
title = {Enhancing entanglement trapping by weak measurement and quantum measurement reversal},
author = {Zhang, Ying-Jie, E-mail: qfyingjie@iphy.ac.cn and Institute of Physics, Chinese Academy of Sciences, Beijing, 100190 and Han, Wei and Fan, Heng, E-mail: hfan@iphy.ac.cn and Xia, Yun-Jie, E-mail: yjxia@mail.qfnu.edu.cn},
abstractNote = {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. - Highlights: • Propose a scheme to enhance entanglement trapping in photonic band gap material. • Weak measurement and its reversal are performed locally on individual qubits. • Obtain an optimal condition for maximizing the concurrence of entanglement trapping. • Entanglement sudden death can be prevented by weak measurement in photonic band gap.},
doi = {10.1016/J.AOP.2014.12.010},
journal = {Annals of Physics},
number = ,
volume = 354,
place = {United States},
year = {Sun Mar 15 00:00:00 EDT 2015},
month = {Sun Mar 15 00:00:00 EDT 2015}
}