Experimental validation of binary collisions between wave fragments in the photosensitive Belousov–Zhabotinsky reaction

Toth, Rita; Stone, Christopher; Adamatzky, Andrew; de Lacy Costello, Ben; Bull, Larry

Abstract

Using the examples of an excitable chemical system (the Belousov–Zhabotinsky medium) and plasmodium of Physarum polycephalum we show that universal computation in a geometrically unconstrained medium is only possible when resources (excitability or concentration of nutrients) are limited. In situations of limited resources the systems studied develop traveling localizations. These localizations are the elementary units of dynamical logical circuits in collision-based computing architectures

• Journal Article Type: Article
• Publication Date: Aug 30, 2009
• Journal: Chaos, Solitons and Fractals
• Print ISSN: 0960-0779
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 41
• Issue: 4
• Pages: 1605-1615
• DOI: https://doi.org/10.1016/j.chaos.2008.07.001
• Keywords: binary collisions, wave fragments, Belousov-Zhabotinsky reaction
• Public URL: https://uwe-repository.worktribe.com/output/993593
• Publisher URL: http://dx.doi.org/10.1016/j.chaos.2008.07.001