On the Relativity of Quantumness as Implied by Relativity of Arithmetic and Probability

• URL: http://arxiv.org/abs/2510.00637v1
• Date: Wed, 01 Oct 2025 08:13:14 GMT
• Title: On the Relativity of Quantumness as Implied by Relativity of Arithmetic and Probability
• Authors: Marek Czachor,
• Abstract summary: hierarchical structure of isomorphic arithmetics.<n>Probabilities $p_k=gk(p)$, where $g$ is the restriction of $g_mathbbR$ to the interval $[0,1]$.<n>Quantum binary probabilities are defined by $g(p)=sin2fracpi2p$.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: A hierarchical structure of isomorphic arithmetics is defined by a bijection $g_\mathbb{R}:\mathbb{R}\to \mathbb{R}$. It entails a hierarchy of probabilistic models, with probabilities $p_k=g^k(p)$, where $g$ is the restriction of $g_\mathbb{R}$ to the interval $[0,1]$, $g^k$ is the $k$th iterate of $g$, and $k$ is an arbitrary integer (positive, negative, or zero; $g^0(x)=x$). The relation between $p$ and $g^k(p)$, $k>0$, is analogous to the one between probability and neural activation function. For \mbox{$k\ll -1$}, $g^k(p)$ is essentially white noise (all processes are equally probable). The choice of $k=0$ is physically as arbitrary as the choice of origin of a line in space, hence what we regard as experimental binary probabilities, $p_{\rm exp}$, can be given by any $k$, $p_{\rm exp}=g^k(p)$. Quantum binary probabilities are defined by $g(p)=\sin^2\frac{\pi}{2}p$. With this concrete form of $g$, one finds that any two neighboring levels of the hierarchy are related to each other in a quantum--subquantum relation. In this sense, any model in the hierarchy is probabilistically quantum in appropriate arithmetic and calculus. And the other way around: any model is subquantum in appropriate arithmetic and calculus. Probabilities involving more than two events are constructed by means of trees of binary conditional probabilities. We discuss from this perspective singlet-state probabilities and Bell inequalities. We find that singlet state probabilities involve simultaneously three levels of the hierarchy: quantum, hidden, and macroscopic. As a by-product of the analysis, we discover a new (arithmetic) interpretation of the Fubini--Study geodesic distance.

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