两点量子元胞自动机全加器电路设计  

Design of Full Adder Circuit Based on 2-dot Quantum-dot Cellular Automata

作　　者：汪志春[1] 蔡理[1] 杨晓阔[1] 王森[1] 

机构地区：[1]空军工程大学理学院,陕西西安710051

出　　处：《空军工程大学学报（自然科学版）》2014年第5期84-87,共4页Journal of Air Force Engineering University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(61172043);陕西省自然科学基础研究计划资助重点项目(2011JZ015);陕西省自然科学基金资助项目(2013JQ8010)

摘　　要：针对两点量子元胞自动机在信号沿竖直方向进行取反操作时元胞容易发生翻转的问题,提出了一种将信号沿竖直方向的取反操作转移到水平方向的方法,并将此方法运用到两点量子元胞自动机的异或门结构以及基于此异或门结构的全加器电路的设计。利用遗传模拟退火算法对电路功能进行了仿真,仿真结果验证了该方法的可行性和正确性。与利用传统四点量子元胞自动机设计的全加器电路相比,文中设计的全加器电路所需的电子数和量子点数均减少了25%,电路集成度提高了6.2%。"Aiming at the problem that Cellulars of 2-dot Quantum-dot Cellular Automata were easy to switch when signal was inverted in the vertical direction.A method to transfer the signal inverting opera- tion from vertical to horizontal was proposed.A XOR gate of 2-dot QCA and a full adder based on the XOR gate structure were designed with this method. The simulation to the function of the circuit was given through the Genetic Simulated Annealing Algorithm based on the semiclassieal model of QCA. The simu- lation results validated the feasibility and the validity of this method. Compared to the traditional 4-dot QCA, the 2-dot QCA takes advances of fewer amounts of the electrons and the quantum dots required by 25%, higher integration by6.2%.

关 键 词：两点量子元胞自动机 逻辑门 反相器 全加器 半经典模型 遗传模拟退火法 

分 类 号：O471.1[理学—半导体物理] TN4[理学—物理]