Reversion of weak-measured quantum entanglement state

doi:10.1088/1674-1056/ab8c3e

中国物理B ›› 2020, Vol. 29 ›› Issue (7): 74202-074202.doi: 10.1088/1674-1056/ab8c3e

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

Reversion of weak-measured quantum entanglement state

Shao-Jiang Du(杜少将), Yonggang Peng(彭勇刚), Hai-Ran Feng(冯海冉), Feng Han(韩峰), Lian-Wu Yang(杨连武), Yu-Jun Zheng(郑雨军)

1 Department of Physics and Information Engineering, Jining University, Qufu 273155, China;
2 School of Physics, Shandong University, Jinan 250100, China

收稿日期:2020-01-31 修回日期:2020-04-13 出版日期:2020-07-05 发布日期:2020-07-05
通讯作者: Shao-Jiang Du, Yu-Jun Zheng E-mail:yzheng@sdu.edu.cn;dsjsd@126.com
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11504135) and University Science and Technology Plan Project of Shandong Province, China (Grant Nos. J16LJ53).

Reversion of weak-measured quantum entanglement state

Shao-Jiang Du(杜少将)¹, Yonggang Peng(彭勇刚)², Hai-Ran Feng(冯海冉)¹, Feng Han(韩峰)¹, Lian-Wu Yang(杨连武)¹, Yu-Jun Zheng(郑雨军)²

1 Department of Physics and Information Engineering, Jining University, Qufu 273155, China;
2 School of Physics, Shandong University, Jinan 250100, China

Received:2020-01-31 Revised:2020-04-13 Online:2020-07-05 Published:2020-07-05
Contact: Shao-Jiang Du, Yu-Jun Zheng E-mail:yzheng@sdu.edu.cn;dsjsd@126.com
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11504135) and University Science and Technology Plan Project of Shandong Province, China (Grant Nos. J16LJ53).

摘要/Abstract

摘要： We theoretically study the reversible process of quantum entanglement state by means of weak measurement and corresponding reversible operation. We present a protocol of the reversion operation in two bodies based on the theory of reversion of single photon and then expend it in quantum communication channels. The theoretical results demonstrate that the protocol does not break the information transmission after a weak measurement and a reversible measurement with the subsequent process in the transmission path. It can reverse the perturbed entanglement intensity evolution to its original state. Under the condition of different weak measurement intensity the protocol can reverse the perturbed quantum entanglement system perfectly. In the process we can get the classical information described by information gain from the quantum system through weak measurement operation. On the other hand, in order to realize complete reversibility, the classical information of the quantum entanglement system must obey a limited range we present in this paper in the reverse process.

关键词: quantum entanglement, weak measurement, reversion operation, information gain and reversibility

Abstract: We theoretically study the reversible process of quantum entanglement state by means of weak measurement and corresponding reversible operation. We present a protocol of the reversion operation in two bodies based on the theory of reversion of single photon and then expend it in quantum communication channels. The theoretical results demonstrate that the protocol does not break the information transmission after a weak measurement and a reversible measurement with the subsequent process in the transmission path. It can reverse the perturbed entanglement intensity evolution to its original state. Under the condition of different weak measurement intensity the protocol can reverse the perturbed quantum entanglement system perfectly. In the process we can get the classical information described by information gain from the quantum system through weak measurement operation. On the other hand, in order to realize complete reversibility, the classical information of the quantum entanglement system must obey a limited range we present in this paper in the reverse process.

Key words: quantum entanglement, weak measurement, reversion operation, information gain and reversibility

中图分类号: (Entanglement and quantum nonlocality)

03.65.Ud

03.67.-a (Quantum information) 03.67.Hk (Quantum communication)

杜少将, 彭勇刚, 冯海冉, 韩峰, 杨连武, 郑雨军. Reversion of weak-measured quantum entanglement state[J]. 中国物理B, 2020, 29(7): 74202-074202.

Shao-Jiang Du(杜少将), Yonggang Peng(彭勇刚), Hai-Ran Feng(冯海冉), Feng Han(韩峰), Lian-Wu Yang(杨连武), Yu-Jun Zheng(郑雨军). Reversion of weak-measured quantum entanglement state[J]. Chin. Phys. B, 2020, 29(7): 74202-074202.

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Reversion of weak-measured quantum entanglement state

Reversion of weak-measured quantum entanglement state

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