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Probabilistic 2D cellular automata with memory lifetime increasing like $e^{L^2}$

Intuitively, I would expect a $e^{-L^2}$ scaling, since flipping from all-$0$ to all-$1$ means having a temporal domain wall in spacetime, which requires $O(L^2)$ local faults if every cluster of ...
Ilmari Karonen's user avatar

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