Experimentally Verified Approach to Nonentanglement-Breaking Channel Certification

Mao, Yingqiu1,2; Zhen, Yi-Zheng1,3; Liu, Hui1,2; Zou, Mi1,2; Tang, Qi-Jie1,2; Zhang, Si-Jie1,2; Wang, Jian1,2; Liang, Hao1,2; Zhang, Weijun4; Li, Hao4; You, Lixing4; Wang, Zhen4; Li, Li1,2; Liu, Nai-Le1,2; Chen, Kai1,2; Chen, Teng-Yun1,2; Pan, Jian-Wei1,2

2020

10.1103/PhysRevLett.124.010502

Physical Review Letters   影响因子和分区

10797114

1079-7114

Ensuring the nonentanglement-breaking (non-EB) property of quantum channels is crucial for the effective distribution and storage of quantum states. However, a practical method for direct and accurate certification of the non-EB feature is highly desirable. Here, we propose and verify a realistic source based measurement device independent certification of non-EB channels. Our method is resilient to repercussions on the certification from experimental conditions, such as multiphotons and imperfect state preparation, and can be implemented with an information incomplete set. We achieve good agreement between experimental outcomes and theoretical predictions, which is validated by the expected results of the ideal semiquantum signaling game, and accurately certify the non-EB channels. Furthermore, our approach is highly robust to effects from noise. Therefore, the proposed approach can be expected to play a significant role in the design and evaluation of realistic quantum channels.
© 2020 American Physical Society.

SCI ; EI

英语

其他

Fundamental Research Funds for the Central Universities[WK2340000083]

Physics

Physics, Multidisciplinary

WOS:000505495300003

American Physical Society

20200508101967

Quantum channel ; Quantum entanglement

Information Theory and Signal Processing:716.1 ; Quantum Theory; Quantum Mechanics:931.4

PHYSICS

Web of Science

1.Hefei National Laboratory for Physical Sciences at Microscale, Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui; 230026, China
2.CAS Ctr. for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui; 230026, China
3.Institute for Quantum Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong; 518055, China
4.State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, Shanghai; 200050, China

Mao, Yingqiu,Zhen, Yi-Zheng,Liu, Hui,et al. Experimentally Verified Approach to Nonentanglement-Breaking Channel Certification[J]. Physical Review Letters,2020,124(1).

Mao, Yingqiu.,Zhen, Yi-Zheng.,Liu, Hui.,Zou, Mi.,Tang, Qi-Jie.,...&Pan, Jian-Wei.(2020).Experimentally Verified Approach to Nonentanglement-Breaking Channel Certification.Physical Review Letters,124(1).

Mao, Yingqiu,et al."Experimentally Verified Approach to Nonentanglement-Breaking Channel Certification".Physical Review Letters 124.1(2020).