Anticlone Gaussian attack for continuous variable EPR correlations
We investigate the security of a model based on continuous variable QKD with Einstein-Podolsky-Rosen correlations against Gaussian clone-anticlone attacks. We find that the eavesdropper distils more information using the individual Gaussian anticlone attack than the optimal Gaussian cloner. However,...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
sciverse
2007
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/706/1/Anticlone_Gaussian_attack_0953-4075_40_6_006.pdf http://irep.iium.edu.my/706/ http://dx.doi.org/10.1088/0953-4075/40/6/006 |
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| Summary: | We investigate the security of a model based on continuous variable QKD with Einstein-Podolsky-Rosen correlations against Gaussian clone-anticlone attacks. We find that the eavesdropper distils more information using the individual Gaussian anticlone attack than the optimal Gaussian cloner. However, a secure key can still be generated for the transmission coefficient of the quantum channel bigger than 0.5. Thus, the model is secure for clone-anticlone attacks.
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