Abstract. The issues faced by CMOS technology in the nanoregime have led to research for other possible technologies that can operate with the same functionalities but with higher speed and lower power dissipation. One such technology is quantum-dot cellular automata (QCA). A 3 × 3 reversible universal and multifunctional gate is presented that is reversible, universal, and multifunctional in nature. The gate is then used as a building block to design an ultra-efficient 1-bit full adder and 1-bit full subtractor in QCA. Based on the performance analysis, it is concluded that the proposed designs are efficient in respect to cell count, area, delay, and quantum cost and achieve performance improvements over existing designs in the literature. Hence, the proposed designs can be efficiently utilized in various digital logics requiring minimal area and ultra-low-power consumption such as central processing units, microcontrollers, etc.

中文翻译：

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量子点元胞自动机纳米计算中可逆通用多功能门基1位全加器和全减器的设计

摘要。CMOS 技术在纳米结构中面临的问题导致了对其他可能的技术的研究，这些技术可以以相同的功能运行，但速度更快，功耗更低。其中一项技术是量子点元胞自动机 (QCA)。提出了一种 3 × 3 可逆通用和多功能门，其本质上是可逆的、通用的和多功能的。然后将该门用作构建模块，以在 QCA 中设计超高效的 1 位全加器和 1 位全减法器。基于性能分析，得出的结论是，所提出的设计在单元数、面积、延迟和量子成本方面是有效的，并且比文献中的现有设计实现了性能改进。因此，