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Continuous Variable Quantum Key Distribution: Finite-Key Analysis of Composable Security against Coherent Attacks
Open accessAbstract
We provide a security analysis for continuous variable quantum key distribution protocols based on the transmission of two-mode squeezed vacuum states measured via homodyne detection. We employ a version of the entropic uncertainty relation for smooth entropies to give a lower bound on the number of secret bits which can be extracted from a finite number of runs of the protocol. This bound is valid under general coherent attacks, and gives rise to keys which are composably secure. For comparison, we also give a lower bound valid under the assumption of collective attacks. For both scenarios, we find positive key rates using experimental parameters reachable today.
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Citations
Cites
A Fully Quantum Asymptotic Equipartition Property
Tomamichel, M., Colbeck, R., & Renner, R. (2009) · IEEE Transactions on Information Theory · doi:10.1109/tit.2009.2032797 · Cited by 356
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Advances in quantum cryptography
Pirandola, S., Andersen, U. L., Banchi, L., Berta, M., Bunandar, D., Colbeck, R., Englund, D., Gehring, T., Lupo, C., Ottaviani, C., et al. (2020) · Advances in Optics and Photonics · doi:10.1364/aop.361502 · Cited by 2,033
Self-citationSecure 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
Metadata
- Authors
- Furrer, F., Franz, T., Berta, M., Leverrier, A., Scholz, V. B., Tomamichel, M., & Werner, R. F.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2012-09-05
- Volume
- 109
- Issue
- 10
- Pages
- 100502-100502
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2001257482
- Cited by
- 303
- References
- 1
- FWCI
- 18.05
- Type
- journal article
- Language
- en
- Open access
- green
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- Furrer, F., Franz, T., Berta, M., Leverrier, A., Scholz, V. B., Tomamichel, M., & Werner, R. F. (2012). Continuous Variable Quantum Key Distribution: Finite-Key Analysis of Composable Security against Coherent Attacks. Physical Review Letters. https://doi.org/10.1103/physrevlett.109.100502
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