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DOI | 10.1038/s41586-018-0639-4 |
An entanglement-based wavelength-multiplexed quantum communication network | |
Wengerowsky, Soeren1,2; Joshi, Siddarth Koduru1,2,4; Steinlechner, Fabian1,2,5,6; Huebel, Hannes3; Ursin, Rupert1,2 | |
2018-12-13 | |
发表期刊 | NATURE
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ISSN | 0028-0836 |
EISSN | 1476-4687 |
出版年 | 2018 |
卷号 | 564期号:7735页码:225-+ |
文章类型 | Article |
语种 | 英语 |
国家 | Austria; England; Germany |
英文摘要 | Quantum key distribution(1) has reached the level of maturity required for deployment in real-world scenarios(2-6). It has previously been shown to operate alongside classical communication in the same telecommunication fibre(7-9) and over long distances in fibre(10,11) and in free-space links(12-15). Despite these advances, the practical applicability of quantum key distribution is curtailed by the fact that most implementations and protocols are limited to two communicating parties. Quantum networks scale the advantages of quantum key distribution protocols to more than two distant users. Here we present a fully connected quantum network architecture in which a single entangled photon source distributes quantum states to many users while minimizing the resources required for each. Further, it does so without sacrificing security or functionality relative to two-party communication schemes. We demonstrate the feasibility of our approach using a single source of bipartite polarization entanglement, which is multiplexed into 12 wavelength channels. Six states are then distributed between four users in a fully connected graph using only one fibre and one polarization analysis module per user. Because no adaptations of the entanglement source are required to add users, the network can readily be scaled to a large number of users, without requiring trust in the provider of the source. Unlike previous attempts at multi-user networks, which have been based on active optical switches and therefore limited to some duty cycle, our implementation is fully passive and thus has the potential for unprecedented quantum communication speeds. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000452972600044 |
WOS关键词 | KEY DISTRIBUTION ; CRYPTOGRAPHY ; SECURE |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/202996 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Austrian Acad Sci, Inst Quantum Opt & Quantum Informat Vienna, Vienna, Austria; 2.Univ Vienna, Vienna Ctr Quantum Sci & Technol, Fac Phys, Vienna, Austria; 3.Austrian Inst Technol, Vienna, Austria; 4.Univ Bristol, Dept Elect & Elect Engn, HH Wills Phys Lab, Quantum Engn Technol Labs, Bristol, Avon, England; 5.Fraunhofer Inst Appl Opt & Precis Engn, Jena, Germany; 6.Friedrich Schiller Univ Jena, Abbe Ctr Photon, Jena, Germany |
推荐引用方式 GB/T 7714 | Wengerowsky, Soeren,Joshi, Siddarth Koduru,Steinlechner, Fabian,et al. An entanglement-based wavelength-multiplexed quantum communication network[J]. NATURE,2018,564(7735):225-+. |
APA | Wengerowsky, Soeren,Joshi, Siddarth Koduru,Steinlechner, Fabian,Huebel, Hannes,&Ursin, Rupert.(2018).An entanglement-based wavelength-multiplexed quantum communication network.NATURE,564(7735),225-+. |
MLA | Wengerowsky, Soeren,et al."An entanglement-based wavelength-multiplexed quantum communication network".NATURE 564.7735(2018):225-+. |
条目包含的文件 | 条目无相关文件。 |
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