Experimental implementation of collision-based gates in Belousov-Zhabotinsky medium

被引:43
作者
Costello, BD
Adamatzky, A
机构
[1] Univ W England, Fac Sci Appl, Ctr Res Analyt Mat & Sensor Sci, Bristol BS16 1QY, Avon, England
[2] Univ W England, Fac Comp, Bristol BS16 1QY, Avon, England
关键词
D O I
10.1016/j.chaos.2004.11.056
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We experimentally demonstrate that excitation wave-fragments in a Belousov-Zhabotinsky (BZ) medium with immobilised catalyst can be used to build elementary logical gates and circuits. Following our previous theoretical constructions [Adamatzky A. Collision-based computing in Belousov Zhabotinsky medium. Chaos, Solitons & Fractals 2004;21:1259-64] on embedding logical schemes in BZ medium, we represent True/False values of logical variables by presence/absence of wave-fragments. We show that when wave-fragments collide with each other they may annihilate, fuse, split and change their velocity vectors. Thus the values of logical variables represented by the wave-fragments change and certain logical operations are implemented. In the paper we provide examples of experimental logical gates, and present pioneer results in dynamic, architectureless computing in excitable reaction-diffusion systems. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:535 / 544
页数:10
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