The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Cambridge quantum network
Open accessAbstract
Future-proofing current fibre networks with quantum key distribution (QKD) is an attractive approach to combat the ever growing breaches of data theft. To succeed, this approach must offer broadband transport of quantum keys, efficient quantum key delivery and seamless user interaction, all within the existing fibre network. However, quantum networks to date either require dark fibres and/or offer bit rates inadequate for serving a large number of users. Here we report a city wide high-speed metropolitan QKD network—the Cambridge quantum network—operating on fibres already populated with high-bandwidth data traffic. We implement a robust key delivery layer to demonstrate essential network operation, as well as enabling encryption of 100 Gigabit per second (Gbps) simultaneous data traffic with rapidly refreshed quantum keys. Network resilience against link disruption is supported by high-QKD link rates and network link redundancy. We reveal that such a metropolitan network can support tens of thousands of users with key rates in excess of 1 kilobit per second (kbps) per user. Our result hence demonstrates a clear path for implementing quantum security in metropolitan fibre networks.
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Gisin, N., Ribordy, G., Tittel, W., & Zbinden, H. (2002) · Reviews of Modern Physics · doi:10.1103/revmodphys.74.145 · Cited by 8,515
Quantum cryptography: Public key distribution and coin tossing
Bennett, C. H., & Brassard, G. (2014) · Theoretical Computer Science · doi:10.1016/j.tcs.2014.05.025 · Cited by 8,299
Cited by
Secure quantum key distribution with realistic devices
Xu, F., Ma, X., Zhang, Q., Lo, H.-K., & Pan, J.-W. (2020) · Reviews of Modern Physics · doi:10.1103/revmodphys.92.025002 · Cited by 1,543
Applications of single photons to quantum communication and computing
Couteau, C., Barz, S., Durt, T., Gerrits, T., Huwer, J., Prevedel, R., Rarity, J., Shields, A., & Weihs, G. (2023) · Nature Reviews Physics · doi:10.1038/s42254-023-00583-2 · Cited by 216
Self-citationQuantifying Quantumness of Channels Without Entanglement
Ku, H.-Y., Kadlec, J., Černoch, A., Quintino, M. T., Zhou, W., Lemr, K., Lambert, N., Miranowicz, A., Chen, S.-L., Nori, F., et al. (2022) · PRX Quantum · doi:10.1103/prxquantum.3.020338 · Cited by 42
Metadata
- Authors
- Dynes, J. F., Wonfor, A., Tam, W. W. S., Sharpe, A. W., Takahashi, R., Lucamarini, M., Plews, A., Yuan, Z. L., Dixon, A. R., Cho, J., Tanizawa, Y., Elbers, J. P., Greißer, H., White, I. H., Penty, R. V., & Shields, A. J.
- Venue
- npj Quantum Information
- Published
- 2019-11-21
- Volume
- 5
- Issue
- 1
- ISSN
- 2056-6387 (ISSN-L)
- OpenAlex
- W2991441573
- Cited by
- 272
- References
- 2
- FWCI
- 10.94
- Type
- journal article
- Language
- en
- Open access
- gold
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- CoChat. (2026). Citation check: Cambridge quantum network. https://app.cochat.ai/papers/10.1038/s41534-019-0221-4
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- Dynes, J. F., Wonfor, A., Tam, W. W. S., Sharpe, A. W., Takahashi, R., Lucamarini, M., Plews, A., Yuan, Z. L., Dixon, A. R., Cho, J., Tanizawa, Y., Elbers, J. P., Greißer, H., White, I. H., Penty, R. V., & Shields, A. J. (2019). Cambridge quantum network. npj Quantum Information. https://doi.org/10.1038/s41534-019-0221-4
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