Short paper demonstrates effective dynamics in coarse-grained systems with implications for quantum phenomena.
Recent work has shown equivalence between the formal apparatus of quantum mechanics and a general class of non-Markovian systems called indivisible stochastic systems. This short paper demonstrates how these indivisible dynamical systems can be used to describe the effective dynamics of coarse-grained observers. The observation suggests that quantum mechanics may arise as the expected phenomenology of coarse-grained systems in a classical, deterministic substrate.
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Ryan Williams (2026) studied this question.
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