Deterministic quantum key distribution based on Gaussian-modulated EPR correlations
نویسندگان
چکیده
منابع مشابه
Security of EPR-based Quantum Key Distribution
We propose a proof of the security of EPR-based quantum key distribution against enemies with unlimited computational power. The proof holds for a protocol using interactive error-reconciliation scheme. We assume in this paper that the legitimate parties receive a given number of single photon signals and that their measurement devices are perfect.
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A novel quantum key distribution protocol is presented, based on entanglement and dense coding and allowing asymptotically secure key distribution. Considering the storage time limit of quantum bits, a grouping quantum key distribution protocol is proposed, which overcomes the vulnerability of first protocol and improves the maneuverability. Moreover, a security analysis is given and a simple t...
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In the Article, we did not take into account the entanglement swapping that can be caused by eavesdropping efforts. Due to entanglement swapping, in Group 2 of Table 3 and Group 3 of Table 4, the initial states will never lead to a measurement outcome by Eve Ψ Ψ + − 13 24 and Ψ Φ − − 13 24 . Similarly, if after Eve’s measurement Bob performs a measurement using an incorrect sequence, this will ...
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• m, the length (in bits) of the private key to be generated. • ǫ, the maximum threshold value for the error rate during the quantum transmission (ǫ < 1/4). • τ , a security constant such that ǫ 1−ǫ < ǫ 1−ǫ + τ < 1. • the security parameter r. It must be large enough so that Alice and Bob can find a binary matrix K of size m × r such that any linear combination of rows of K that contains at lea...
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ژورنال
عنوان ژورنال: Chinese Physics
سال: 2006
ISSN: 1009-1963,1741-4199
DOI: 10.1088/1009-1963/15/6/025