MERLIN SCIENCE — Nuclear Spin Qubits in Neural Tissue: A Quantum Cognition Model — E8 Intelligence Research
- 1Independent Researcher, United Kingdom
Abstract
We open with the finding in one clean sentence. Nuclear spin qubits, specifically phosphorus-31, in neural tissue are proposed as a physical substrate for quantum cognition, with constraints on coherence times and molecular structure that are specific enough to test.
Here's the field context. For decades, the question of whether the brain performs quantum computation has been dismissed as either metaphor or category error. Fisher's proposal changes the stakes by grounding the idea in concrete chemistry and nuclear physics, not vague entanglement. He identifies a plausible qubit candidate—phosphorus-31—and a plausible carrier, the Posner molecule, with a symmetry that might protect coherence long enough to matter.
Now the mechanism. The model runs on spin-1/2 nuclei with a gyromagnetic ratio near 17.2 MHz per tesla. Coherence must survive beyond a tenth of a millisecond, which Fisher calls the quantum window. The Posner molecule, with its six phosphate groups arranged octahedrally, pr
Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com
Related
- MERLIN SCIENCE — Quantum Interference in Social Decision-Making: A Quantum Cognition Mo — E8 Intelligence Research
- MERLIN SCIENCE — Phi-Resonant E8 Neural Lattice for Quantum Cognition — E8 Intelligence Research
- Nuclear Spin Qubits in Phosphorus Complexes as Substrate for Quantum Cognition — E8 Intelligence Research
- Nuclear Spin Qubits in Posner Molecules: A Physical Basis for Quantum Cognition — E8 Intelligence Research
- ³¹P Nuclear Spins in Posner Molecules as Room-Temperature Qubits for Quantum Cognition — E8 Intelligence Research
BibTeX
@misc{caldin2026merlin,
title = {{MERLIN SCIENCE — Nuclear Spin Qubits in Neural Tissue: A Quantum Cognition Model — E8 Intelligence Research}},
author = {Andrew Stewart Caldin},
howpublished = {Zenodo},
year = {2026},
month = oct,
doi = {10.5281/zenodo.23464911},
url = {https://zenodo.org/records/23464911},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - MERLIN SCIENCE — Nuclear Spin Qubits in Neural Tissue: A Quantum Cognition Model — E8 Intelligence Research
AU - Andrew Stewart Caldin
PY - 2026
DA - 2026/10/19
PB - Zenodo
DO - 10.5281/zenodo.23464911
UR - https://zenodo.org/records/23464911
AB - We open with the finding in one clean sentence. Nuclear spin qubits, specifically phosphorus-31, in neural tissue are proposed as a physical substrate for quantum cognition, with constraints on coherence times and molecular structure that are specific enough to test. Here's the field context. For decades, the question of whether the brain performs quantum computation has been dismissed as either metaphor or category error. Fisher's proposal changes the stakes by grounding the idea in concrete chemistry and nuclear physics, not vague entanglement. He identifies a plausible qubit candidate—phosphorus-31—and a plausible carrier, the Posner molecule, with a symmetry that might protect coherence long enough to matter. Now the mechanism. The model runs on spin-1/2 nuclei with a gyromagnetic ratio near 17.2 MHz per tesla. Coherence must survive beyond a tenth of a millisecond, which Fisher calls the quantum window. The Posner molecule, with its six phosphate groups arranged octahedrally, pr Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com
ER -