Quantum dot cellular automata (QCA) technology is considered as one of the most suitable replacements to reduce the CMOS-based digital circuit design problems at the nanoscale due to its tiny size, fast, latency and very low power consumption. One of the main components of microprocessors is the arithmetic logic unit (ALU) and in other words, it acts as the heart of microprocessors. This paper presents a QCA technology-based reversible ALU unit using basic reversible blocks and a novel reversible block namely BS1 Block. The proposed block performs logic and arithmetic operations in the proposed scheme. The simulations of the proposed design are carried out by QCA Designer. According to the simulated results, the proposed structure has a 35%, 27% and 30% improvement in quantum cost, the number of cells and the occupied area in comparison to the previous conducted researches, respectively.

量子点元胞自动机 (QCA) 技术由于其体积小、速度快、延迟和功耗极低，被认为是减少纳米级基于 CMOS 的数字电路设计问题的最合适的替代品之一。微处理器的主要组件之一是算术逻辑单元 (ALU)，换句话说，它充当微处理器的心脏。本文介绍了一种基于 QCA 技术的可逆 ALU 单元，它使用基本可逆块和一种新颖的可逆块，即 BS1 块。提议的块在提议的方案中执行逻辑和算术运算。拟议设计的模拟由 QCA Designer 执行。根据模拟结果，所提出的结构在量子成本上有 35%、27% 和 30% 的改进，