# An Experimentally Verified Approach to non-Entanglement-Breaking Channel   Certification

**Authors:** Yingqiu Mao, Yi-Zheng Zhen, Hui Liu, Mi Zou, Qi-Jie Tang, Si-Jie, Zhang, Jian Wang, Hao Liang, Weijun Zhang, Hao Li, Lixing You, Zhen Wang, Li, Li, Nai-Le Liu, Kai Chen, Teng-Yun Chen, Jian-Wei Pan

arXiv: 1906.09984 · 2020-01-08

## TL;DR

This paper presents a practical, measurement device independent method to certify non-entanglement-breaking quantum channels, resilient to experimental imperfections and noise, aiding realistic quantum communication.

## Contribution

It introduces a new certification approach for non-EB channels that is robust, practical, and effective under real experimental conditions, including incomplete information.

## Key findings

- Experimental results match theoretical predictions.
- Method successfully certifies non-EB channels.
- Approach is robust against noise and imperfections.

## Abstract

Ensuring the non-entanglement-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 information incomplete set. We achieve good agreement between experimental outcomes and theoretical predictions, which is validated by the expected results of the ideal semi-quantum 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.

## Full text

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## Figures

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## References

49 references — full list in the complete paper: https://tomesphere.com/paper/1906.09984/full.md

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Source: https://tomesphere.com/paper/1906.09984