Implementation of a 46-node quantum metropolitan area network
Abstract Quantum key distribution (QKD) enables secure key exchanges between two remote users. The ultimate goal of secure communication is to establish a global quantum network. The existing field tests suggest that quantum networks are feasible. To achieve a practical quantum network, we need to o...
Guardado en:
| Autores principales: | , , , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Nature Portfolio
2021
|
| Materias: | |
| Acceso en línea: | https://doaj.org/article/207db2c3a058461da2f6c4e79d88c9a6 |
| Etiquetas: |
Agregar Etiqueta
Sin Etiquetas, Sea el primero en etiquetar este registro!
|
| id |
oai:doaj.org-article:207db2c3a058461da2f6c4e79d88c9a6 |
|---|---|
| record_format |
dspace |
| spelling |
oai:doaj.org-article:207db2c3a058461da2f6c4e79d88c9a62021-12-02T17:19:13ZImplementation of a 46-node quantum metropolitan area network10.1038/s41534-021-00474-32056-6387https://doaj.org/article/207db2c3a058461da2f6c4e79d88c9a62021-09-01T00:00:00Zhttps://doi.org/10.1038/s41534-021-00474-3https://doaj.org/toc/2056-6387Abstract Quantum key distribution (QKD) enables secure key exchanges between two remote users. The ultimate goal of secure communication is to establish a global quantum network. The existing field tests suggest that quantum networks are feasible. To achieve a practical quantum network, we need to overcome several challenges including realizing versatile topologies for large scales, simple network maintenance, extendable configuration and robustness to node failures. To this end, we present a field operation of a quantum metropolitan-area network with 46 nodes and show that all these challenges can be overcome with cutting-edge quantum technologies. In particular, we realize different topological structures and continuously run the network for 31 months, by employing standard equipment for network maintenance with an extendable configuration. We realize QKD pairing and key management with a sophisticated key control centre. In this implementation, the final keys have been used for secure communication such as real-time voice telephone, text messaging and file transmission with one-time pad encryption, which can support 11 pairs of users to make audio calls simultaneously. Combined with intercity quantum backbone and ground–satellite links, our metropolitan implementation paves the way toward a global quantum network.Teng-Yun ChenXiao JiangShi-Biao TangLei ZhouXiao YuanHongyi ZhouJian WangYang LiuLuo-Kan ChenWei-Yue LiuHong-Fei ZhangKe CuiHao LiangXiao-Gang LiYingqiu MaoLiu-Jun WangSi-Bo FengQing ChenQiang ZhangLi LiNai-Le LiuCheng-Zhi PengXiongfeng MaYong ZhaoJian-Wei PanNature PortfolioarticlePhysicsQC1-999Electronic computers. Computer scienceQA75.5-76.95ENnpj Quantum Information, Vol 7, Iss 1, Pp 1-6 (2021) |
| institution |
DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 |
| spellingShingle |
Physics QC1-999 Electronic computers. Computer science QA75.5-76.95 Teng-Yun Chen Xiao Jiang Shi-Biao Tang Lei Zhou Xiao Yuan Hongyi Zhou Jian Wang Yang Liu Luo-Kan Chen Wei-Yue Liu Hong-Fei Zhang Ke Cui Hao Liang Xiao-Gang Li Yingqiu Mao Liu-Jun Wang Si-Bo Feng Qing Chen Qiang Zhang Li Li Nai-Le Liu Cheng-Zhi Peng Xiongfeng Ma Yong Zhao Jian-Wei Pan Implementation of a 46-node quantum metropolitan area network |
| description |
Abstract Quantum key distribution (QKD) enables secure key exchanges between two remote users. The ultimate goal of secure communication is to establish a global quantum network. The existing field tests suggest that quantum networks are feasible. To achieve a practical quantum network, we need to overcome several challenges including realizing versatile topologies for large scales, simple network maintenance, extendable configuration and robustness to node failures. To this end, we present a field operation of a quantum metropolitan-area network with 46 nodes and show that all these challenges can be overcome with cutting-edge quantum technologies. In particular, we realize different topological structures and continuously run the network for 31 months, by employing standard equipment for network maintenance with an extendable configuration. We realize QKD pairing and key management with a sophisticated key control centre. In this implementation, the final keys have been used for secure communication such as real-time voice telephone, text messaging and file transmission with one-time pad encryption, which can support 11 pairs of users to make audio calls simultaneously. Combined with intercity quantum backbone and ground–satellite links, our metropolitan implementation paves the way toward a global quantum network. |
| format |
article |
| author |
Teng-Yun Chen Xiao Jiang Shi-Biao Tang Lei Zhou Xiao Yuan Hongyi Zhou Jian Wang Yang Liu Luo-Kan Chen Wei-Yue Liu Hong-Fei Zhang Ke Cui Hao Liang Xiao-Gang Li Yingqiu Mao Liu-Jun Wang Si-Bo Feng Qing Chen Qiang Zhang Li Li Nai-Le Liu Cheng-Zhi Peng Xiongfeng Ma Yong Zhao Jian-Wei Pan |
| author_facet |
Teng-Yun Chen Xiao Jiang Shi-Biao Tang Lei Zhou Xiao Yuan Hongyi Zhou Jian Wang Yang Liu Luo-Kan Chen Wei-Yue Liu Hong-Fei Zhang Ke Cui Hao Liang Xiao-Gang Li Yingqiu Mao Liu-Jun Wang Si-Bo Feng Qing Chen Qiang Zhang Li Li Nai-Le Liu Cheng-Zhi Peng Xiongfeng Ma Yong Zhao Jian-Wei Pan |
| author_sort |
Teng-Yun Chen |
| title |
Implementation of a 46-node quantum metropolitan area network |
| title_short |
Implementation of a 46-node quantum metropolitan area network |
| title_full |
Implementation of a 46-node quantum metropolitan area network |
| title_fullStr |
Implementation of a 46-node quantum metropolitan area network |
| title_full_unstemmed |
Implementation of a 46-node quantum metropolitan area network |
| title_sort |
implementation of a 46-node quantum metropolitan area network |
| publisher |
Nature Portfolio |
| publishDate |
2021 |
| url |
https://doaj.org/article/207db2c3a058461da2f6c4e79d88c9a6 |
| work_keys_str_mv |
AT tengyunchen implementationofa46nodequantummetropolitanareanetwork AT xiaojiang implementationofa46nodequantummetropolitanareanetwork AT shibiaotang implementationofa46nodequantummetropolitanareanetwork AT leizhou implementationofa46nodequantummetropolitanareanetwork AT xiaoyuan implementationofa46nodequantummetropolitanareanetwork AT hongyizhou implementationofa46nodequantummetropolitanareanetwork AT jianwang implementationofa46nodequantummetropolitanareanetwork AT yangliu implementationofa46nodequantummetropolitanareanetwork AT luokanchen implementationofa46nodequantummetropolitanareanetwork AT weiyueliu implementationofa46nodequantummetropolitanareanetwork AT hongfeizhang implementationofa46nodequantummetropolitanareanetwork AT kecui implementationofa46nodequantummetropolitanareanetwork AT haoliang implementationofa46nodequantummetropolitanareanetwork AT xiaogangli implementationofa46nodequantummetropolitanareanetwork AT yingqiumao implementationofa46nodequantummetropolitanareanetwork AT liujunwang implementationofa46nodequantummetropolitanareanetwork AT sibofeng implementationofa46nodequantummetropolitanareanetwork AT qingchen implementationofa46nodequantummetropolitanareanetwork AT qiangzhang implementationofa46nodequantummetropolitanareanetwork AT lili implementationofa46nodequantummetropolitanareanetwork AT naileliu implementationofa46nodequantummetropolitanareanetwork AT chengzhipeng implementationofa46nodequantummetropolitanareanetwork AT xiongfengma implementationofa46nodequantummetropolitanareanetwork AT yongzhao implementationofa46nodequantummetropolitanareanetwork AT jianweipan implementationofa46nodequantummetropolitanareanetwork |
| _version_ |
1718381071405416448 |