论文标题
在极化和空间模式的自由度中，具有单光子的半Quantum键分布
Semi-quantum key distribution with single photons in both polarization and spatial-mode degrees of freedom
论文作者
论文摘要
在本文中，一种新型的半量子键分布（SQKD）协议是基于极化和空间模式自由度的单个光子设计的，它允许在一个量子交流者和一个经典的交流者之间建立一个原始键。提出的SQKD协议仅采用一种量子状态作为初始量子资源。详细的安全性分析表明，它可以抵抗EVE的主动攻击，例如拦截迅速攻击，量度呈现攻击，特洛伊木马的攻击和纠缠量的攻击。所提出的SQKD协议仅需要在极化和空间模式的自由度中作为量子资源，并采用单光子测量。因此，它具有极好的可行性，因为在极化和空间模式的自由度中的制备和测量可以通过当前的量子技术轻松实现。
In this paper, a novel semi-quantum key distribution (SQKD) protocol is designed based on single photons in both polarization and spatial-mode degrees of freedom, which allows to establish a raw key between one quantum communicant and one classical communicant. The proposed SQKD protocol only adopts one kind of quantum state as the initial quantum resource. The detailed security analysis shows that it can resist Eve's active attacks, such as the intercept-resend attack, the measure-resend attack, the Trojan horse attack and the entangle-measure attack. The proposed SQKD protocol only needs single photons in both polarization and spatial-mode degrees of freedom as quantum resource and employs single-photon measurements. Thus, it has excellent feasibility, since the preparation and the measurement of a single photon in both polarization and spatial-mode degrees of freedom can be easily acheived with present quantum technologies.
