量子密钥分发的交互式仿真
Interactive simulations for quantum key distribution
摘要：
安全通信协议正变得越来越重要，例如对于基于互联网的通信。量子密钥分发允许通常被称为Alice和Bob的两方生成0和1的秘密序列，称为只有他们自己知道的密钥。传统上，爱丽丝和鲍勃永远无法确定他们的通信没有被恶意窃听者破坏。然而，量子力学使安全通信成为可能。量子力学的基本原理是，测量会扰动系统（除非测量与量子态兼容），这一原理也适用于窃听者。使用适当的协议来创建密钥，Alice和Bob可以通过测量中的错误来检测窃听者的存在。作为QuVis量子力学可视化项目的一部分，我们开发了一套四个交互式模拟，演示了三种不同的量子密钥分发协议的基本原理。模拟使用偏振光子或自旋1/2粒子作为物理实现。模拟和相关活动可免费在线使用或下载，并可在平板电脑和PC等各种设备上运行。在三年多的时间里，学生们对模拟和活动进行了评估。初步研究表明，精细的模拟和活动可以帮助学生在入门级和高级本科阶段学习QKD的基本原理。
英文摘要：
Secure communication protocols are becoming increasingly important, e.g. for internet-based communication. Quantum key distribution allows two parties, commonly called Alice and Bob, to generate a secret sequence of 0s and 1s called a key that is only known to themselves. Classically, Alice and Bob could never be certain that their communication was not compromised by a malicious eavesdropper. Quantum mechanics however makes secure communication possible. The fundamental principle of quantum mechanics that taking a measurement perturbs the system (unless the measurement is compatible with the quantum state) also applies to an eavesdropper. Using appropriate protocols to create the key, Alice and Bob can detect the presence of an eavesdropper by errors in their measurements. As part of the QuVis Quantum Mechanics Visualization Project, we have developed a suite of four interactive simulations that demonstrate the basic principles of three different quantum key distribution protocols. The simulations use either polarized photons or spin 1/2 particles as physical realizations. The simulations and accompanying activities are freely available for use online or download, and run on a wide range of devices including tablets and PCs. Evaluation with students over three years was used to refine the simulations and activities. Preliminary studies show that the refined simulations and activities help students learn the basic principles of QKD at both the introductory and advanced undergraduate levels.
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。
