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Towards arithmetic circuits in sub-excitable chemical media

Adamatzky, Andrew; De Lacy Costello, Ben; Bull, Larry; Holley, Julian

Authors

Lawrence Bull Larry.Bull@uwe.ac.uk
School Director (Research & Enterprise) and Professor

Julian Holley



Abstract

A sub-excitable Belousov-Zhabotinsky medium exhibits localized travelling excitations (in contrast to an excitable medium exhibiting target or spiral waves). Initially assymetric perturbations give birth to excitation wave-fragments. The shape and velocity vectors of the wave-fragments are conserved, meaning they can travel for substantial distances in the reaction media. When the wave-fragments collide they may reflect, merge, or annihilate. We interpret wave-fragments as values of logical variables, and the post-collision states of the fragments as outputs of logical gates. We show how to cascade logical gates in primitive arithmetical circuits. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Journal Article Type Review
Publication Date Jan 1, 2011
Journal Israel Journal of Chemistry
Print ISSN 0021-2148
Electronic ISSN 1869-5868
Publisher Wiley-VCH Verlag
Peer Reviewed Peer Reviewed
Volume 51
Issue 1
Pages 56-66
DOI https://doi.org/10.1002/ijch.201000046
Keywords wave fragments,systems, motion, Belousov-Zhabotinsky reaction, excitable chemical medium, collision-based computing, nonequilibrium processes, computational chemistry
Public URL https://uwe-repository.worktribe.com/output/965410
Publisher URL http://www.wiley-vch.de/publish/en/