تقرير
Field test of mode-pairing quantum key distribution
| العنوان: | Field test of mode-pairing quantum key distribution |
|---|---|
| المؤلفون: | Zhu, Hao-Tao, Huang, Yizhi, Pan, Wen-Xin, Zhou, Chao-Wu, Tang, Jianjun, He, Hong, Cheng, Ming, Jin, Xiandu, Zou, Mi, Tang, Shibiao, Ma, Xiongfeng, Chen, Teng-Yun, Pan, Jian-Wei |
| سنة النشر: | 2024 |
| المجموعة: | Quantum Physics |
| مصطلحات موضوعية: | Quantum Physics |
| الوصف: | Quantum key distribution is a cornerstone of quantum technology, offering information-theoretical secure keys for remote parties. With many quantum communication networks established globally, the mode-pairing protocol stands out for its efficacy over inter-city distances using simple setups, emerging as a promising solution. In this study, we employ the mode-pairing scheme into existing inter-city fiber links, conducting field tests across distances ranging from tens to about a hundred kilometers. Our system achieves a key rate of $1.217$ kbit/s in a $195.85$ km symmetric link and $3.089$ kbit/s in a $127.92$ km asymmetric link without global phase locking. The results demonstrate that the mode-pairing protocol can achieve key rates comparable to those of a single quantum link between two trusted nodes on the Beijing-Shanghai backbone line, effectively reducing the need for half of the trusted nodes. These field tests confirm the mode-pairing scheme's adaptability, efficiency, and practicality, positioning it as a highly suitable protocol for quantum networks. Comment: 15 pages, 5 figures, 6 tables |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/2403.09339 |
| رقم الأكسشن: | edsarx.2403.09339 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |