DYNAMICAL LOGICAL CIRCUITS IN SUBEXCITABLE CHEMICAL MEDIA Pilot project: PhD Studentship in Collision-Based Computing in Excitable Media

Lead Research Organisation: University of the West of England
Department Name: Faculty of Environment and Technology


We are seeking fuding for two PhD studentship positions aimed for interdisciplinary research, knowledge transfer and training in non-classical computation, the field of science emerging at the boundary between novel and nature-inspired computing paradigms and architectures, and non-linear chemistry and physics. We will explore complex behaviour and interaction dynamics of localised mobile excitation patterns to design working prototypes of architectureless computing devices. 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, and to simulate certain classes of mathematical machines. We represent information values of variables by the presence/absence or structure of wave-fragments. The wave-fragments may annihilate, fuse, split and change their velocity vectors as a result of collision with other wave-fragments --- thus the values of variables represented by the wave-fragments change and certain logical operations and information processing operations are implemented. We aim to theoretically design and experimentally build a universal collision-based massively-parallel processor based on excitable chemical reactions, where the space-time dynamics of travelling localised excitations realise embedded logical and arithmetical circuits and mathematical machines.


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Adamatzky A (2010) Operating binary strings using gliders and eaters in reaction-diffusion cellular automaton in Mathematical and Computer Modelling

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DE LACY COSTELLO B (2011) CHEMICAL TESSELLATIONS in International Journal of Bifurcation and Chaos

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Holley J (2011) Logical and arithmetic circuits in Belousov-Zhabotinsky encapsulated disks. in Physical review. E, Statistical, nonlinear, and soft matter physics

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Stevens WM (2012) Time-dependent wave selection for information processing in excitable media. in Physical review. E, Statistical, nonlinear, and soft matter physics

Description We have made pioneer prototypes of computing circuits based on collisions between travelling wave-fragments in Belousov-Zhabotinksy medium.

Research publications can be found in arxiv.org and scholar.google.com
Exploitation Route The findings were used in implementation of collision-based circuits in chemical, physical and biological substrates.
Sectors Digital/Communication/Information Technologies (including Software)

Description We have designed several working experimental laboratory prototypes of reaction-diffusion computing circuits in sub-excitable Belousov-Zhabotinsky medium. The prototypes include functionally complete sets of Boolean logical gates and binary arithmetics circuit.
First Year Of Impact 2014
Sector Digital/Communication/Information Technologies (including Software),Electronics
Impact Types Economic

Description FP7: FET Proactive Intiative: Bio-chemistry based Infor
Amount £1,780,000 (GBP)
Funding ID 248992 
Organisation European Commission 
Sector Public
Country European Union (EU)
Start 02/2010 
End 01/2013