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arXiv 1206.3548quant-phphysics.optics
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基于Fibonacci轨道Angular Momentum态的量子密钥分发

Quantum Key Distribution with Fibonacci Orbital Angular Momentum States

David S. Simon, Nate Lawrence, Jacob Trevino, Luca Dal Negro, Alexander V. Sergienko

摘要:

量子密码学和量子密钥分发(QKD)是量子信息处理最成功的应用,突出了量子力学通过不可克隆定理保护共享密钥安全的独特能力。在这里,我们提出了一个新的和根本不同的方法,高容量,高效率的量子密钥分配利用之间的相互作用,从量子信息和光散射的非周期性光子介质的跨学科的想法。所提出的方法的新颖性依赖于一种独特类型的纠缠光子源和一种新的物理机制,用于有效地共享密钥。新的源产生纠缠光子与轨道角动量(OAM)随机分布在斐波那契数。将纠缠与Fibonacci序列的数学性质相结合,产生了一种新的QKD协议。该斐波那契协议对光子数分裂攻击免疫,并允许从少量光子安全生成长密钥。与其他协议不同,参考系对准和生产和检测基础的主动调制是不必要的,因为安全性不需要使用非正交偏振测量。

英文摘要:

Quantum cryptography and quantum key distribution (QKD) have been the most successful applications of quantum information processing, highlighting the unique capability of quantum mechanics, through the no-cloning theorem, to protect the security of shared encryption keys. Here we present a new and fundamentally different approach to high-capacity, high-efficiency QKD by exploiting interplay between cross-disciplinary ideas from quantum information and light scattering of aperiodic photonic media. The novelty of the proposed approach relies on a unique type of entangled-photon source and a new physical mechanism for efficiently sharing keys. The new source produces entangled photons with orbital angular momenta (OAM) randomly distributed among Fibonacci numbers. Combining entanglement with the mathematical properties of Fibonacci sequences leads to a new QKD protocol. This Fibonacci protocol is immune to photon-number-splitting attacks and allows secure generation of long keys from few photons. Unlike other protocols, reference frame alignment and active modulation of production and detection bases are unnecessary, since security does not require use of non-orthogonal polarization measurements.

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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