中文摘要：

量子细胞自动机（QCA）是一种基于元胞自动机结构的纳米器件,该器件通过电子占据量子点的位置来表征二进制信息。针对QCA加法器电路的国内外研究状况,首先分别详细地综述了进位传送加法器、载流加法器、超前进位加法器和并行前缀加法器,得出QCA加法器向大规模和规律化方向发展的结论。然后进一步从元胞个数、元胞所占面积和时钟延迟上进行分析评述,指出了载流加法器的整体性能是最优的;但与其他加法器相比,前缀加法器中的Brent-Kung Adder的稳定性最好,并对今后QCA加法器电路的研究方向进行了展望。

英文摘要：

Quantum cellular automata（QCA） is a kind of nano-device based on the cellular automata structure,and the position of the quantum dot is occupied by electron to represent binary information.According to the research status of QCA adder circuits at home and abroad,the ripple carry adder,carry flow adder,carry look-ahead adder and parallel prefix adder are reviewed in detail,respectively.The conclusion is obtained that the QCA adder circuits are developing into the large-scale and regularity.Furthermore,the number of cells,the occupied area and the delay of clocks are analyzed.It shows that the overall performance of CFA is the best and the stability of Brent-Kung Adder is the best compared with other adders.The research orientation of the QCA adder circuits in future is prospected.