Experimental logical gates in a reaction-diffusion medium: The XOR gate and beyond

作     者：Andrew Adamatzky Benjamin De Lacy Costello 

作者机构：Faculty of Computing Engineering and Mathematical Sciences University of the West of England Bristol BS16 1QY United Kingdom Faculty of Applied Sciences University of the West of England Bristol BS16 1QY United Kingdom 

出 版 物：《Physical Review E》 (物理学评论E辑：统计、非线性和软体物理学)

年 卷 期：2002年第66卷第4期

页      面：046112-046112页

核心收录：

学科分类：07[理学] 070203[理学-原子与分子物理] 0702[理学-物理学] 

主　　题：Logic gates 

摘      要：We exploit the particulars of diffusive wave front interactions in certain types of two-reactant reaction-diffusion medium to construct a laboratory prototype of an XOR gate. In the design, the values of the logic variables are represented by the presence or absence of a precipitate, “wires are constructed of a substrate loaded gel, and the computation is based on diffusive wave dynamics. We also discuss implementation of AND gate and study a three-valued composition, derived from the gate dynamic, and discuss possible logics that could be derived from this composition.