Quantum Coherence in Posner Clusters: Theoretical Neural Substrate Lacking Experimental Proof — E8 Intelligence Research

Andrew Stewart Caldin

Published Oct 21, 2026• 0 citations

Abstract

FINDING: Quantum coherence in Posner clusters (calcium-phosphate molecules) proposed as neural quantum processing substrate; no confirmed experimental evidence in search results, only theoretical/video claims. | MATH: Posner molecule Ca₉(PO₄)₆ — nuclear spin-1/2 phosphorus-31 (³¹P) pairs; proposed entanglement lifetime ~10⁵ s at biological temperatures; Fisher's model invokes spin entanglement via nuclear spins with zero-quantum coherences; no closed-form equation extracted from sources. | CONNECTION: Posner cluster geometry — Ca₉(PO₄)₆ has approximate octahedral/tetrahedral phosphate arrangement; phosphate tetrahedra (PO₄³⁻) exhibit Td symmetry — a crystallographic point group (order 24, related to root system A₃). No explicit golden ratio or base-60 link in provided text. | DEPTH: 3 — theoretical speculation with no peer-reviewed quantitative result in these search results; mathematical content absent beyond spin-counting. FINDING: Bayesian uncertainty analysis for systems biology Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com

DOI: 10.5281/zenodo.23526221

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