In today’s environment, digital technology and digital computing are unavoidable components of the creation of electronic gadgets. Quantum-dot cellular automata, or QCA, is a new paradigm for realizing digital logic on the nanoscale. QCA technology is a type of nanotechnology that is used to construct computational circuits. Due to its low latency and area consumption, it can be a promising technique for overcoming CMOS limitations at the nanoscale. Also, fault-tolerant circuits ensure circuit resilience using dependable circuits in this technology. The multiplexer is one of the essential circuits in computer logic. In the most widely used circuits, the multiplexer is an important and primary component. Therefore, in this paper, using the micro-level polarization of QCA, we attempt to develop a fault-tolerant multiplexer architecture. The study employs fault-tolerant majority gates to create a fault-tolerant 2:1 multiplexer. QCADesigner develops and simulates the proposed multiplexer. The results indicate the efficiency of the proposed design in comparison with other designs.

在当今的环境中，数字技术和数字计算是电子产品创造中不可避免的组成部分。量子点元胞自动机（QCA）是在纳米尺度上实现数字逻辑的新范式。QCA 技术是一种用于构建计算电路的纳米技术。由于其低延迟和面积消耗，它可以成为克服纳米级 CMOS 限制的有前途的技术。此外，容错电路使用该技术中的可靠电路确保电路弹性。多路复用器是计算机逻辑中必不可少的电路之一。在最广泛使用的电路中，多路复用器是一个重要且主要的组件。因此，在本文中，我们利用 QCA 的微观极化，尝试开发一种容错多路复用器架构。该研究采用容错多数门来创建容错 2:1 多路复用器。QCADesigner 开发和模拟所提出的多路复用器。结果表明，与其他设计相比，所提出的设计的效率。