Quantum-dot cellular automata (QCA) technology is a proper alternative to CMOS circuits, which is a Nano-scale technology that is capable of designing and implementing logic circuits via high efficiency and low power. In this regard, one of the major challenges to design the circuit at QCA is the loss, addition, cells, rotation, and displacement of the cells. Some solutions have been provided to handle these challenges. In this paper, three new structures are proposed to increase the fault tolerance in the three-input majority gate. QCA Designer implements the proposed structures. The simulation results show an increase in fault tolerance and an improvement in the number of cells and space requirements.

中文翻译：

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量子点元胞自动机中容错多数门的有效结构

量子点元胞自动机（QCA）技术是CMOS电路的合适替代品，CMOS电路是一种纳米级技术，能够通过高效率和低功耗设计和实现逻辑电路。在这方面，在 QCA 设计电路的主要挑战之一是单元的丢失、添加、单元、旋转和位移。已经提供了一些解决方案来应对这些挑战。在本文中，提出了三种新结构来增加三输入多数门的容错能力。QCA Designer 实施建议的结构。仿真结果表明，容错能力提高，单元数量和空间要求得到改善。