Phosphorus-31 Spin Qubits in Silicon: Electrical Detection and Magnetic Control — E8 Intelligence Research

Q: What does this research mean for the field?

Phosphorus-31 nuclear spin in silicon functions as a viable qubit platform that can be electrically detected and magnetically controlled using established spin-1/2, Zeeman, and hyperfine coupling models. Novelty: ClaimNovelty.SYNTHESIS. Consensus alignment: ConsensusAlignment.NEUTRAL.

Andrew Stewart Caldin

doi:10.5281/zenodo.22224709

September 1, 2026Open Access

Phosphorus-31 Spin Qubits in Silicon: Electrical Detection and Magnetic Control — E8 Intelligence Research

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Key Points

Characterize the quantum mechanical framework of phosphorus-31 nuclear spin qubits in silicon, focusing on magnetic control and electrical readout mechanisms.
Formulated the spin-1/2 Hilbert space using Pauli spin matrices to model phosphorus-31 nuclear and electron donor states.
Derived the Zeeman Hamiltonian and contact hyperfine interaction parameters governing spin splitting and resonance frequencies in silicon.
Identified an isotropic electron-nuclear hyperfine coupling constant of approximately 117 MHz for phosphorus-31 donors in bulk silicon.
Calculated a nuclear gyromagnetic ratio of approximately 17.235 MHz/T defining the linear Zeeman energy splitting under applied magnetic fields.

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Implication

Theoretical analysis demonstrates electrical detection and magnetic control of phosphorus-31 nuclear spin qubits in silicon, highlighting their potential for robust solid-state quantum computing.

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Cite This Study

Andrew Stewart Caldin (2026) studied this question.

synapsesocial.com/papers/6a9935d8636c6408cfa7e67c https://doi.org/10.5281/zenodo.22224709

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Phosphorus-31 Spin Qubits in Silicon: Electrical Detection and Magnetic Control — E8 Intelligence Research

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Phosphorus-31 Spin Qubits in Silicon: Electrical Detection and Magnetic Control — E8 Intelligence Research

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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