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arXiv quant-ph/0309105quant-ph
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BB84协议的时频基

Time-frequency bases for BB84 protocol

S. F. Yelin, Bing C. Wang

摘要:

传统上用于量子密钥分发(QKD)的基础是通过干涉测量法测量的0或π/2偏振或者可替代地0或π/2相位。我们引入了一组新的基地,即脉冲发送的频率或时间的基础上,如果脉冲被假定为变换限制。此外,它是讨论如何这个计划可以很容易地从一个二进制推广到一个N维系统,即,到“quNdits。最佳脉冲分布和窃听的机会进行了讨论。

英文摘要:

The bases traditionally used for quantum key distribution (QKD) are a 0 or pi/2 polarization or alternatively a 0 or pi/2 phase measured by interferometry. We introduce a new set of bases, i.e. pulses sent in either a frequency or time basis if the pulses are assumed to be transform limited. In addition it is discussed how this scheme can be easily generalized from a binary to an N-dimensional system, i.e., to ``quNdits.'' Optimal pulse distribution and the chances for eavesdropping are discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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