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

Adamatzky, Andrew; de Lacy Costello, Ben

Authors



Abstract

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. © 2002 The American Physical Society.

Journal Article Type Article
Publication Date Oct 14, 2002
Journal Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
Print ISSN 1063-651X
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 66
Issue 4
Pages 6
DOI https://doi.org/10.1103/PhysRevE.66.046112
Keywords experimental logic gates, reaction-diffusion medium, XOR gate
Public URL https://uwe-repository.worktribe.com/output/1079561
Publisher URL http://dx.doi.org/10.1103/PhysRevE.66.046112