Quantum dot cellular automata (QCA) with the characteristics such as low energy dissipation and high density is a suitable alternative technology to CMOS technology. Arithmetic logic unit (ALU) is one of the most important critical components of a microprocessor, and it is the core component of central processing unit (CPU). In this work, a novel reversible ALU in QCA nanotechnology is proposed. The reversible ALU contains three Ferdkin gates and one HNG gate. The proposed structure needs one constant input and generates only one garbage output. The proposed circuit does not need any rotated cells and only uses one layer that improves the manufacturability of the design interestingly. This circuit can perform 20 operations such as AND, OR, XOR, XNOR, COPY, addition, and increment. Our design contains only 480 cells and 12 majority voters and requires 15 clock phases. The proposed structures are simulated using QCADesigner version 2.0.3. The reversible ALU, despite a 25% increase in operations, has a 28% improvement in cell numbers and a 6% improvement in delay.

中文翻译：

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QCA纳米技术中使用HNG和Ferdkin门的可逆ALU

具有低能量耗散和高密度等特征的量子点元胞自动机（QCA）是CMOS技术的合适替代技术。算术逻辑单元（ALU）是微处理器最重要的关键组件之一，并且是中央处理器（CPU）的核心组件。在这项工作中，提出了一种在QCA纳米技术中新颖的可逆ALU。可逆ALU包含3个Ferdkin门和1个HNG门。提出的结构需要一个常量输入，并且仅生成一个垃圾输出。所提出的电路不需要任何旋转的单元，而仅使用一层可以有趣地改善设计的可制造性。该电路可以执行20个运算，例如AND，OR，XOR，XNOR，COPY，加法和递增。我们的设计仅包含480个单元和12个多数投票者，并且需要15个时钟相位。使用QCADesigner 2.0.3版对拟议的结构进行了仿真。尽管操作增加了25％，但可逆ALU的单元数却提高了28％，延迟提高了6％。