Quantum key distribution (QKD) is one of the exciting applications of quantum mechanics. It allows the sharing of secret keys between two communicating parties with unconditional security. A variety of QKD protocols have been proposed since the inception of the BB84 protocol. Among different implementation techniques of QKD protocols, there is a category which exploits higher dimensions qubit states to encode classical bits. In this paper, we focus on such a QKD protocol called KXB10, which uses three bases with higher dimensions. Analysis of the generalized dimension quantum states is performed by evaluating it based on the index transmission error rate ITER. We find that there is a direct relationship between qubit dimensions and ITER for the KXB10 protocol.

中文翻译：

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高维量子态KXB10 QKD协议的安全性分析

量子密钥分发（QKD）是量子力学令人兴奋的应用之一。它允许在两个通信方之间以无条件的安全性共享密钥。自 BB84 协议出现以来，已经提出了各种 QKD 协议。在 QKD 协议的不同实现技术中，有一类利用更高维度的量子比特状态来编码经典比特。在本文中，我们专注于一种称为 KXB10 的 QKD 协议，它使用三个具有更高维度的碱基。广义维度量子态的分析是通过基于指数传输错误率ITER的评估来执行的。我们发现 KXB10 协议的量子比特维度和 ITER 之间存在直接关系。