Nuclear Spin Qubits in Neural Processes: Fisher's ³¹P Hypothesis — E8 Intelligence Research
- 1Independent Researcher, United Kingdom
Abstract
FINDING: Matthew Fisher proposes nuclear spin qubits (phosphorus-31) in neural processes, with quantum coherence timescales tied to molecular geometry and spin dynamics, not a proven mechanism but a concrete physical hypothesis. | MATH: Fisher's model centers on phosphorus-31 (³¹P) nuclear spin-1/2; key timescale is spin decoherence time T2, with proposed quantum processing via spin-spin interactions (J-coupling) between ³¹P nuclei in Posner molecules Ca9(PO4)6. The relevant Hamiltonian includes Zeeman term HZ = −ℏ γ B0 Îz and dipolar/J-coupling HJ = J Î1 · Î2. Fisher's criterion for quantum cognition requires T2 > synaptic timescale (~ms), and he estimates T2 ∼ 102–103 s for isolated ³¹P spins in a shielded environment, constrained by T2−1 ∝ γ2 Bnoise2 τc (motional narrowing). No closed-form equation for consciousness emerges; the mathematics is
Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com
Related
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BibTeX
@misc{caldin2026nuclear,
title = {{Nuclear Spin Qubits in Neural Processes: Fisher's ³¹P Hypothesis — E8 Intelligence Research}},
author = {Andrew Stewart Caldin},
howpublished = {Zenodo},
year = {2026},
month = oct,
doi = {10.5281/zenodo.23446608},
url = {https://zenodo.org/records/23446608},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Nuclear Spin Qubits in Neural Processes: Fisher's ³¹P Hypothesis — E8 Intelligence Research
AU - Andrew Stewart Caldin
PY - 2026
DA - 2026/10/18
PB - Zenodo
DO - 10.5281/zenodo.23446608
UR - https://zenodo.org/records/23446608
AB - FINDING: Matthew Fisher proposes nuclear spin qubits (phosphorus-31) in neural processes, with quantum coherence timescales tied to molecular geometry and spin dynamics, not a proven mechanism but a concrete physical hypothesis. | MATH: Fisher's model centers on phosphorus-31 (³¹P) nuclear spin-1/2; key timescale is spin decoherence time T_2, with proposed quantum processing via spin-spin interactions (J-coupling) between ³¹P nuclei in Posner molecules Ca_9(PO_4)_6. The relevant Hamiltonian includes Zeeman term H_Z = −ℏ γ B_0 Î_z and dipolar/J-coupling H_J = J Î_1 · Î_2. Fisher's criterion for quantum cognition requires T_2 > synaptic timescale (~ms), and he estimates T_2 ∼ 10^2–10^3 s for isolated ³¹P spins in a shielded environment, constrained by T_2^−1 ∝ γ^2 B_noise^2 τ_c (motional narrowing). No closed-form equation for consciousness emerges; the mathematics is Author: Andrew Stewart Caldin, Independent Researcher, UK. Part of the E8 Intelligence Research series. Platform: e8intelligence.com
ER -