Continuous-Variable Quantum Key Distribution Protocols Over Noisy Channels
A continuous-variable quantum key distribution protocol based on squeezed states and heterodyne detection is introduced and shown to attain higher secret key rates over a noisy line than any other one-way Gaussian protocol. This increased resistance to channel noise can be understood as resulting fr...
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2010
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| Online Access: | http://hdl.handle.net/1721.1/51735 |
| _version_ | 1826216513180270592 |
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| author | Cerf, Nicolas J. Garcia-Patron Sanchez, Raul |
| author2 | Massachusetts Institute of Technology. Research Laboratory of Electronics |
| author_facet | Massachusetts Institute of Technology. Research Laboratory of Electronics Cerf, Nicolas J. Garcia-Patron Sanchez, Raul |
| author_sort | Cerf, Nicolas J. |
| collection | MIT |
| description | A continuous-variable quantum key distribution protocol based on squeezed states and heterodyne detection is introduced and shown to attain higher secret key rates over a noisy line than any other one-way Gaussian protocol. This increased resistance to channel noise can be understood as resulting from purposely adding noise to the signal that is converted into the secret key. This notion of noise-enhanced tolerance to noise also provides a better physical insight into the poorly understood discrepancies between the previously defined families of Gaussian protocols. |
| first_indexed | 2024-09-23T16:48:51Z |
| format | Article |
| id | mit-1721.1/51735 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:48:51Z |
| publishDate | 2010 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/517352022-09-29T21:38:40Z Continuous-Variable Quantum Key Distribution Protocols Over Noisy Channels Cerf, Nicolas J. Garcia-Patron Sanchez, Raul Massachusetts Institute of Technology. Research Laboratory of Electronics Garcia-Patron Sanchez, Raul Garcia-Patron Sanchez, Raul A continuous-variable quantum key distribution protocol based on squeezed states and heterodyne detection is introduced and shown to attain higher secret key rates over a noisy line than any other one-way Gaussian protocol. This increased resistance to channel noise can be understood as resulting from purposely adding noise to the signal that is converted into the secret key. This notion of noise-enhanced tolerance to noise also provides a better physical insight into the poorly understood discrepancies between the previously defined families of Gaussian protocols. W. M. Keck Foundation Center for Extreme Quantum Information Theory FRIA European Union SECOQC project European Union COMPAS project 2010-02-12T13:32:22Z 2010-02-12T13:32:22Z 2009-03 2008-06 Article http://purl.org/eprint/type/JournalArticle 0031-9007 http://hdl.handle.net/1721.1/51735 García-Patrón, Raúl , and Nicolas J. Cerf. “Continuous-Variable Quantum Key Distribution Protocols Over Noisy Channels.” Physical Review Letters 102.13 (2009): 130501. © 2009 The American Physical Society. en_US http://dx.doi.org/10.1103/PhysRevLett.102.130501 Physical Review Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Cerf, Nicolas J. Garcia-Patron Sanchez, Raul Continuous-Variable Quantum Key Distribution Protocols Over Noisy Channels |
| title | Continuous-Variable Quantum Key Distribution Protocols Over Noisy Channels |
| title_full | Continuous-Variable Quantum Key Distribution Protocols Over Noisy Channels |
| title_fullStr | Continuous-Variable Quantum Key Distribution Protocols Over Noisy Channels |
| title_full_unstemmed | Continuous-Variable Quantum Key Distribution Protocols Over Noisy Channels |
| title_short | Continuous-Variable Quantum Key Distribution Protocols Over Noisy Channels |
| title_sort | continuous variable quantum key distribution protocols over noisy channels |
| url | http://hdl.handle.net/1721.1/51735 |
| work_keys_str_mv | AT cerfnicolasj continuousvariablequantumkeydistributionprotocolsovernoisychannels AT garciapatronsanchezraul continuousvariablequantumkeydistributionprotocolsovernoisychannels |