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MCU
1998

About the Universality of the Billiard ball model

13 years 11 months ago
About the Universality of the Billiard ball model
Block cellular automata (BCA) make local, parallel, synchronous and uniform updates of in nite lattices. In the one-dimensionalcase, there exist BCA with 11 states which are universal for computation. The Billiardballmodelof Margolusis a reversible two-dimensionalBCA which is able to simulateany two-register automatonand is thus universal. This simulationis achieved by embedding a logicalcircuitry with balls. The construction uses Fredkin gate and conservative and reversible logics.
Jérôme Olivier Durand-Lose
Added 01 Nov 2010
Updated 01 Nov 2010
Type Conference
Year 1998
Where MCU
Authors Jérôme Olivier Durand-Lose
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