title: Implementation of glider guns in the light-sensitive Belousov-Zhabotinsky medium.
abstract: In cellular automata models a glider gun is an oscillating pattern of nonquiescent states that periodically emits traveling localizations (gliders). The glider streams can be combined to construct functionally complete systems of logical gates and thus realize universal computation. The glider gun is the only means of ensuring the negation operation without additional external input and therefore is an essential component of a collision-based computing circuit. We demonstrate the existence of glider-gun-like structures in both experimental and numerical studies of an excitable chemical system-the light-sensitive Belousov-Zhabotinsky reaction. These discoveries could provide the basis for future designs of collision-based reaction-diffusion computers.
authors.affiliation: Centre for Research in Analytical, Material and Sensor Sciences, University of the West of England, Bristol, BS16 1QY, United Kingdom. ben.delacycostello@uwe.ac.uk
authors.forename: Ben
authors.initials: B
authors.lastname: de Lacy Costello
authors.forename: Rita
authors.initials: R
authors.lastname: Toth
authors.forename: Christopher
authors.initials: C
authors.lastname: Stone
authors.forename: Andrew
authors.initials: A
authors.lastname: Adamatzky
authors.forename: Larry
authors.initials: L
authors.lastname: Bull