This paper presents a significant contribution to the field of nanoscale computing by proposing an innovative reversible Arithmetic and Logic Unit (ALU) implemented in Quantum-Dot Cellular Automata (QCA). Reversible logic and QCA technology offer promising alternatives to conventional CMOS technology, addressing the challenges of operating at nanoscale dimensions. The primary objective is to develop a highly efficient ALU capable of performing 26 distinct arithmetic and logical operations. The ALU design is based on a novel reversible full adder-subtractor optimized for minimal quantum cost, which is crucial for energy-efficient quantum computation. The evaluation encompasses various criteria related to reversibility, such as gate count, number of constant inputs, number of garbage outputs, and quantum cost. QCA-specific criteria, including cell count, occupied area, and clock cycles, are also considered. The outcomes of this research contribute to the advancement of cell-efficient nanoscale computing, with implications for quantum computation, emerging technologies, and future integrated circuit design.

中文翻译：

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推进纳米级计算：量子点元胞自动机中的高效可逆 ALU

本文提出了一种在量子点元胞自动机 (QCA) 中实现的创新可逆算术和逻辑单元 (ALU)，为纳米级计算领域做出了重大贡献。可逆逻辑和 QCA 技术为传统 CMOS 技术提供了有前景的替代方案，解决了纳米级尺寸操作的挑战。主要目标是开发能够执行 26 种不同算术和逻辑运算的高效 ALU。 ALU 设计基于一种新型可逆全加减法器，针对最小量子成本进行了优化，这对于节能量子计算至关重要。评估涵盖与可逆性相关的各种标准，例如门数、恒定输入数量、垃圾输出数量和量子成本。还考虑了 QCA 特定标准，包括单元计数、占用面积和时钟周期。这项研究的成果有助于细胞高效纳米级计算的进步，对量子计算、新兴技术和未来集成电路设计具有影响。