Security of continuous-variable quantum key distribution: towards a de Finetti theorem for rotation symmetry in phase space
Proving the unconditional security of quantum key distribution (QKD) is a highly challenging task as one needs to determine the most efficient attack compatible with experimental data. This task is even more demanding for continuous-variable QKD as the Hilbert space where the protocol is described i...
| Principais autores: | , , , |
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| Outros Autores: | |
| Formato: | Artigo |
| Idioma: | en_US |
| Publicado em: |
Institute of Physics Publishing
2012
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| Acesso em linha: | http://hdl.handle.net/1721.1/70554 |
| _version_ | 1826192212772257792 |
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| author | Leverrier, Anthony Karpov, Evgueni Grangier, P. Cerf, Nicolas J. |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Leverrier, Anthony Karpov, Evgueni Grangier, P. Cerf, Nicolas J. |
| author_sort | Leverrier, Anthony |
| collection | MIT |
| description | Proving the unconditional security of quantum key distribution (QKD) is a highly challenging task as one needs to determine the most efficient attack compatible with experimental data. This task is even more demanding for continuous-variable QKD as the Hilbert space where the protocol is described is infinite dimensional. A possible strategy to address this problem is to make an extensive use of the symmetries of the protocol. In this paper, we investigate a rotation symmetry in phase space that is particularly relevant to continuous-variable QKD, and explore the way towards a new quantum de Finetti theorem that would exploit this symmetry and provide a powerful tool to assess the security of continuous-variable protocols. As a first step, a single-party asymptotic version of this quantum de Finetti theorem in phase space is derived. |
| first_indexed | 2024-09-23T09:07:57Z |
| format | Article |
| id | mit-1721.1/70554 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:07:57Z |
| publishDate | 2012 |
| publisher | Institute of Physics Publishing |
| record_format | dspace |
| spelling | mit-1721.1/705542022-09-30T13:38:40Z Security of continuous-variable quantum key distribution: towards a de Finetti theorem for rotation symmetry in phase space Leverrier, Anthony Karpov, Evgueni Grangier, P. Cerf, Nicolas J. Massachusetts Institute of Technology. Research Laboratory of Electronics Cerf, Nicolas J. Cerf, Nicolas J. Leverrier, Anthony Proving the unconditional security of quantum key distribution (QKD) is a highly challenging task as one needs to determine the most efficient attack compatible with experimental data. This task is even more demanding for continuous-variable QKD as the Hilbert space where the protocol is described is infinite dimensional. A possible strategy to address this problem is to make an extensive use of the symmetries of the protocol. In this paper, we investigate a rotation symmetry in phase space that is particularly relevant to continuous-variable QKD, and explore the way towards a new quantum de Finetti theorem that would exploit this symmetry and provide a powerful tool to assess the security of continuous-variable protocols. As a first step, a single-party asymptotic version of this quantum de Finetti theorem in phase space is derived. European Union (QAP (FP7-ICT-015848) France. Agence nationale de la recherche (PROSPIQ (ANR-06-NANO-041-05)) France. Agence nationale de la recherche (SEQURE (ANR- 07-SESU-011-01)) Région de Bruxelles-Capitale (Belgium) (project CRYPTASC) Région de Bruxelles-Capitale (Belgium) (programme Prospective Research for Brussels) 2012-05-09T20:26:32Z 2012-05-09T20:26:32Z 2009-11 2009-03 Article http://purl.org/eprint/type/JournalArticle 1367-2630 http://hdl.handle.net/1721.1/70554 Leverrier, A. et al. “Security of Continuous-variable Quantum Key Distribution: Towards a De Finetti Theorem for Rotation Symmetry in Phase Space.” New Journal of Physics 11.11 (2009): 115009. Web. en_US http://dx.doi.org/10.1088/1367-2630/11/11/115009 New Journal of Physics Creative Commons Attribution 3.0 http://creativecommons.org/licenses/by/3.0/ application/pdf Institute of Physics Publishing New Journal of Physics |
| spellingShingle | Leverrier, Anthony Karpov, Evgueni Grangier, P. Cerf, Nicolas J. Security of continuous-variable quantum key distribution: towards a de Finetti theorem for rotation symmetry in phase space |
| title | Security of continuous-variable quantum key distribution: towards a de Finetti theorem for rotation symmetry in phase space |
| title_full | Security of continuous-variable quantum key distribution: towards a de Finetti theorem for rotation symmetry in phase space |
| title_fullStr | Security of continuous-variable quantum key distribution: towards a de Finetti theorem for rotation symmetry in phase space |
| title_full_unstemmed | Security of continuous-variable quantum key distribution: towards a de Finetti theorem for rotation symmetry in phase space |
| title_short | Security of continuous-variable quantum key distribution: towards a de Finetti theorem for rotation symmetry in phase space |
| title_sort | security of continuous variable quantum key distribution towards a de finetti theorem for rotation symmetry in phase space |
| url | http://hdl.handle.net/1721.1/70554 |
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