论文标题
在极化和空间模式的自由度中，与单光子之间的信息泄漏量量子对话
Information leakage resistant quantum dialogue with single photons in both polarization and spatial-mode degrees of freedom
论文作者
论文摘要
在本文中，提出了一种新型的量子对话（QD）协议，该方案是基于极化和空间模式自由度的单个光子的。在拟议的QD协议中，用于编码的极化和空间模式自由度中单光子的初始状态通过其辅助对应物的直接传输从一个交流者到另一个交流者之间的直接传输，在两个交流者之间私有共享。结果，避免了信息泄漏问题。此外，详细的安全性分析还表明，拟议的QD协议可以抵抗EVE的几个著名的主动攻击，例如特洛伊木马攻击，拦截抛弃攻击，量度呈现量的攻击和纠缠量的攻击。所提出的QD协议仅在极化和空间模式的自由度中都需要单光子作为量子资源，并采用单光子测量。结果，实际上是可行的，因为在极化和空间模式的自由度中，可以通过当前的实验技术来实现单个光子的制备和测量。
In this paper, a novel quantum dialogue (QD) protocol is proposed based on single photons in both polarization and spatial-mode degrees of freedom. In the proposed QD protocol, the initial states of single photons in both polarization and spatial-mode degrees of freedom used for encoding are privately shared between two communicants through the direct transmissions of their auxiliary counterparts from one communicant to another. As a result, the information leakage problem is avoided. Moreover, the detailed security analysis also shows that the proposed QD protocol can resist Eve's several famous active attacks, such as the Trojan horse attack, the intercept-resend attack, the measure-resend attack and the entangle-measure attack. The proposed QD protocol only needs single photons in both polarization and spatial-mode degrees of freedom as quantum resource and adopts single-photon measurements. As a result, it is feasible in practice as the preparation and the measurement of a single photon in both polarization and spatial-mode degrees of freedom can be accomplished with current experimental techniques.
