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Action principle for cellular automata and the linearity of quantum mechanics

We introduce an action principle for a class of integer valued cellular automata and obtain Hamiltonian equations of motion. Employing sampling theory, these discrete deterministic equations are invertibly mapped on continuum equations for a set of bandwidth limited harmonic oscillators, which encode the Schrödinger equation. Thus, the linearity of quantum mechanics is related to the action principle of such cellular automata and its conservation laws to discrete ones.

preprint2013arXivOpen access
Hans-Thomas Elze
physics.comp-phmath-phmath.MPquant-ph
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Hans-Thomas Elze

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