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Quantum-type Coherence as a Combination of Symmetry and Semantics

Y. Orlov

quant-pharXiv:quant-ph/9705049

Abstract

It is shown that quantum-type coherence, leading to indeterminism and interference of probabilities, may in principle exist in the absence of the Planck constant and a Hamiltonian. Such coherence is a combined effect of a symmetry (not necessary physical) and semantics. The crucial condition is that symmetries should apply to logical statements about observables. A theoretical example of a non-quantum system with quantum-type properties is analysed.

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