Practical high-dimensional quantum key distribution protocol over deployed multicore fiber.
Journal
Nature communications
ISSN: 2041-1723
Titre abrégé: Nat Commun
Pays: England
ID NLM: 101528555
Informations de publication
Date de publication:
23 Feb 2024
23 Feb 2024
Historique:
received:
03
03
2023
accepted:
06
02
2024
medline:
24
2
2024
pubmed:
24
2
2024
entrez:
23
2
2024
Statut:
epublish
Résumé
Quantum key distribution (QKD) is a secure communication scheme for sharing symmetric cryptographic keys based on the laws of quantum physics, and is considered a key player in the realm of cyber-security. A critical challenge for QKD systems comes from the fact that the ever-increasing rates at which digital data are transmitted require more and more performing sources of quantum keys, primarily in terms of secret key generation rate. High-dimensional QKD based on path encoding has been proposed as a candidate approach to address this challenge. However, while proof-of-principle demonstrations based on lab experiments have been reported in the literature, demonstrations in realistic environments are still missing. Here we report the generation of secret keys in a 4-dimensional hybrid time-path-encoded QKD system over a 52-km deployed multicore fiber link forming by looping back two cores of a 26-km 4-core optical fiber. Our results indicate that robust high-dimensional QKD can be implemented in a realistic environment by combining standard telecom equipment with emerging multicore fiber technology.
Identifiants
pubmed: 38395964
doi: 10.1038/s41467-024-45876-x
pii: 10.1038/s41467-024-45876-x
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
1651Subventions
Organisme : Innovationsfonden (Innovation Fund Denmark)
ID : 9090-00031B
Organisme : Consiglio Nazionale delle Ricerche (National Research Council)
ID : 2014-2020
Informations de copyright
© 2024. The Author(s).
Références
Cisco: Cisco Annual Internet Report - white paper. https://www.cisco.com/c/en/us/solutions/collateral/executive-perspectives/annual-internet-report/white-paper-c11-741490.pdf (2018).
Rivest, R. L., Shamir, A. & Adleman, L. A method for obtaining digital signatures and public-key cryptosystems. Commun. ACM 21, 120–126 (1978).
doi: 10.1145/359340.359342
Bernstein, D. J. & Lange, T. Post-quantum cryptography. Nature 549, 188–194 (2017).
doi: 10.1038/nature23461
pubmed: 28905891
Huttner, B. et al. Long-range qkd without trusted nodes is not possible with current technology. npj Quantum Inf. 8, 108 (2022).
doi: 10.1038/s41534-022-00613-4
Stas, P.-J. et al. Robust multi-qubit quantum network node with integrated error detection. Science 378, 557–560 (2022).
doi: 10.1126/science.add9771
pubmed: 36378964
Pirandola, S., Laurenza, R., Ottaviani, C. & Banchi, L. Fundamental limits of repeaterless quantum communications. Nat. Commun. 8, 15043 (2017).
doi: 10.1038/ncomms15043
pubmed: 28443624
pmcid: 5414096
Sheridan, L. & Scarani, V. Security proof for quantum key distribution using qudit systems. Phys. Rev. A 82, 030301 (2010).
doi: 10.1103/PhysRevA.82.030301
Cerf, N. J., Bourennane, M., Karlsson, A. & Gisin, N. Security of quantum key distribution using d-level systems. Phys. Rev. Lett. 88, 127902 (2002).
doi: 10.1103/PhysRevLett.88.127902
pubmed: 11909502
Bechmann-Pasquinucci, H. & Tittel, W. Quantum cryptography using larger alphabets. Phys. Rev. A 61, 062308 (2000).
doi: 10.1103/PhysRevA.61.062308
Shor, P. W. & Preskill, J. Simple proof of security of the bb84 quantum key distribution protocol. Phys. Rev. Lett. 85, 441–444 (2000).
doi: 10.1103/PhysRevLett.85.441
pubmed: 10991303
Kues, M. et al. On-chip generation of high-dimensional entangled quantum states and their coherent control. Nature 546, 622–626 (2017).
doi: 10.1038/nature22986
pubmed: 28658228
Mirhosseini, M. et al. High-dimensional quantum cryptography with twisted light. N. J. Phys. 17, 033033 (2015).
doi: 10.1088/1367-2630/17/3/033033
Cozzolino, D. et al. Orbital angular momentum states enabling fiber-based high-dimensional quantum communication. Phys. Rev. Appl. 11, 064058 (2019).
doi: 10.1103/PhysRevApplied.11.064058
Cozzolino, D. et al. Air-core fiber distribution of hybrid vector vortex-polarization entangled states. Adv. Photonics 1, 046005 (2019).
doi: 10.1117/1.AP.1.4.046005
Cañas, G. et al. High-dimensional decoy-state quantum key distribution over multicore telecommunication fibers. Phys. Rev. A 96, 022317 (2017).
doi: 10.1103/PhysRevA.96.022317
Da Lio, B. et al. Stable transmission of high-dimensional quantum states over a 2-km multicore fiber. IEEE J. Sel. Top. Quantum Electron. 26, 1–8 (2020).
doi: 10.1109/JSTQE.2019.2960937
Jo, Y., Park, H. S., Lee, S.-W. & Son, W. Efficient high-dimensional quantum key distribution with hybrid encoding. Entropy 21, 80 (2019).
doi: 10.3390/e21010080
pubmed: 33266796
pmcid: 7514190
Wang, F.-X. et al. Characterizing high-quality high-dimensional quantum key distribution by state mapping between different degrees of freedom. Phys. Rev. Appl. 11, 024070 (2019).
doi: 10.1103/PhysRevApplied.11.024070
Islam, N. T., Lim, C. C. W., Cahall, C., Kim, J. & Gauthier, D. J. Provably secure and high-rate quantum key distribution with time-bin qudits. Sci. Adv. 3, 1701491 (2017).
doi: 10.1126/sciadv.1701491
Steinlechner, F. et al. Distribution of high-dimensional entanglement via an intra-city free-space link. Nat. Commun. 8, 15971 (2017).
doi: 10.1038/ncomms15971
pubmed: 28737168
pmcid: 5527279
Martin, A. et al. Quantifying photonic high-dimensional entanglement. Phys. Rev. Lett. 118, 110501 (2017).
doi: 10.1103/PhysRevLett.118.110501
pubmed: 28368623
Cheng, X. et al. Secure high dimensional quantum key distribution based on wavelength-multiplexed time-bin encoding. In: Conference on Lasers and Electro-Optics, pp. 1–3. Optica Publishing Group, STh1D.3. https://doi.org/10.1364/CLEO_SI.2021.STh1D.3 (2021).
Jørgensen, A. A. et al. Petabit-per-second data transmission using a chip-scale microcomb ring resonator source. Nat. Photon. 16, 798–802 (2022).
doi: 10.1038/s41566-022-01082-z
Ding, Y. et al. High-dimensional quantum key distribution based on multicore fiber using silicon photonic integrated circuits. npj Quantum Inf. 3, 25 (2017).
doi: 10.1038/s41534-017-0026-2
Da Lio, B. et al. Path-encoded high-dimensional quantum communication over a 2-km multicore fiber. npj Quantum Inf. 7, 63 (2021).
doi: 10.1038/s41534-021-00398-y
Hayashi, T. et al. Field-deployed multi-core fiber Testbed https://doi.org/10.23919/PS.2019.8818058 (2019).
Hwang, W.-Y. Quantum key distribution with high loss: toward global secure communication. Phys. Rev. Lett. 91, 057901 (2003).
doi: 10.1103/PhysRevLett.91.057901
pubmed: 12906634
Lo, H.-K., Ma, X. & Chen, K. Decoy state quantum key distribution. Phys. Rev. Lett. 94, 230504 (2005).
doi: 10.1103/PhysRevLett.94.230504
pubmed: 16090452
Islam, N. T., Lim, C. C. W., Cahall, C., Kim, J. & Gauthier, D. J. Securing quantum key distribution systems using fewer states. Phys. Rev. A 97, 042347 (2018).
doi: 10.1103/PhysRevA.97.042347
Ribezzo, D. et al. Deploying an inter-european quantum network. Adv. Quantum Technol. 6, 2200061 (2023).
doi: 10.1002/qute.202200061
Bacco, D., Ding, Y., Dalgaard, K., Rottwitt, K. & Oxenløwe, L. K. Space division multiplexing chip-to-chip quantum key distribution. Sci. Rep. 7, 12459 (2017).
doi: 10.1038/s41598-017-12309-3
pubmed: 28963480
pmcid: 5622211
Wang, J. et al. Multidimensional quantum entanglement with large-scale integrated optics. Science 360, 285–291 (2018).
doi: 10.1126/science.aar7053
pubmed: 29519918
Gottesman, D., Lo, H.-K., Lutkenhaus, N. & Preskill, J. Security of quantum key distribution with imperfect devices. In: International Symposium onInformation Theory, 2004. ISIT 2004. Proceedings 136 (2004).
Tang, Y.-L. et al. Source attack of decoy-state quantum key distribution using phase information. Phys. Rev. A 88, 022308 (2013).
doi: 10.1103/PhysRevA.88.022308
Sun, S. & Huang, A. A review of security evaluation of practical quantum key distribution system. Entropy 24, 260 (2022).
doi: 10.3390/e24020260
pubmed: 35205554
pmcid: 8870823
Bacco, D. et al. Characterization and stability measurement of deployed multicore fibers for quantum applications. Photon. Res. 9, 1992–1997 (2021).
doi: 10.1364/PRJ.425890
Luis, R.S. et al. Evaluation of dynamic skew on spooled and deployed multicore fibers using o-band signals. In: 2020 Optical Fiber Communications Conference and Exhibition (OFC) 1–3 (2020). https://ieeexplore.ieee.org/document/9083203 .
Vagniluca, I. et al. Efficient time-bin encoding for practical high-dimensional quantum key distribution. Phys. Rev. Appl. 14, 014051 (2020).
doi: 10.1103/PhysRevApplied.14.014051
Mueller, R. et al. Efficient Information Reconciliation for High-Dimensional Quantum Key Distribution. arXiv 2307.02225 (2023).
OpenStreetMap. https://www.openstreetmap.org/copyright Accessed 2023-09-30.