基于量子元胞自动机的5输入择多门设计与应用  

Quantum-Dot Cellular Automata Based Design of a Five-Input Majority Gate and Its Applications

作　　者：闫爱斌 曹傲然 刘润祺 黄正峰 Yan Aibin;Cao Aoran;Liu Runqi;Huang Zhengfeng(School of Computer Science and Technology,Anhui University,Hefei 230601;School of Microelectronics,Hefei University of Technology,Hefei 230000)

机构地区：[1]安徽大学计算机科学与技术学院,合肥230601 [2]合肥工业大学微电子学院,合肥230000

出　　处：《计算机辅助设计与图形学学报》2023年第9期1450-1456,共7页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家自然科学基金(国际合作)(62111540164).

摘　　要：随着量子元胞自动机(quantum-dot cellular automata,QCA)电路复杂度不断上升,传统的3输入择多门逐渐无法满足现有的需求.为了在减少QCA电路的逻辑深度的同时降低开销,提出一种5输入择多门以实现高效的单层QCA电路.首先将输入元胞进行分散排列,通过中间元胞相连,保证5输入择多门的逻辑正确性;然后根据元胞电子间库仑作用力确定输出元胞的位置,构造出一种低功耗的5输入择多门;最后基于所提出的择多门设计一种D触发器,其具有低复杂度和低开销等特点.采用QCADesigner和QCADesigner-E工具对所提设计的功能、性能和功耗进行评估,结果表明,与现有的结构相比,所提出的5输入择多门不仅总功耗平均减少约57%,而且实现了高极化的输出;所提出的触发器总功耗减少约78%,复杂性、面积和延迟分别降低约35%,28%和28%.With the increasing complexity of quantum-dot cellular automata(QCA)circuit,the traditional 3-input majority gate is gradually unable to meet the existing requirements.In order to reduce the logic depth and cost of QCA circuit,a 5-input majority gate is proposed,which is suitable for realizing efficient single-layer QCA circuit.Firstly,the input cells are arranged separately,and the intermediate cells are inserted to ensure the logical cor-rectness of the 5-input majority gate.Secondly,the position of the output cell is determined according to the Coulomb force between the electrons of the cell,so as to construct a low-power 5-input majority gate.Finally,a D flip-flop is designed using the proposed majority gate.The designed flip-flop has advantages,such as low complexity and less energy consumption.The function,performance and power consumption of the proposed designs are evaluated by using the QCADesigner and QCADesigner-E tools.Compared with the previous de-signs,the proposed 5-input majority gate can not only reduce total energy dissipation by roughly 57%but also achieve the expected high-polarization output.The proposed flip-flop can reduce total power consumption by 78%and meanwhile the complexity,area,and delay by roughly 35%,28%,and 28%,respectively.

关 键 词：量子元胞自动机 单层电路 5输入择多门 D触发器 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]