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Open Quantum Systems Decoherence Quantum Chemistry

Spatial structure and magnetism of a spin-orbit entangled spin-1 coherent spin center: the manganese neutral acceptor in a III-V semiconductor

arXiv
Authors: Julian Zanon, Michael E. Flatté

Year

2025

Paper ID

16418

Status

Preprint

Abstract Read

~2 min

Abstract Words

78

Citations

N/A

Abstract

A Mn dopant in a III-V semiconductor produces a highly-entangled, coherent triplet ground state not fully captured by single-determinant theories of electron structure. We directly construct an analytic form for its ground-state wavefunction, finding surprising spin-charge correlations not revealed by semiclassical calculations. Spin-correlated circulating currents associated with the dopant yield remarkably large magnetic fringe fields of sim1 μT at distances of sim 10 nm from Mn in GaAs, potentially detectable by NV-diamond magnetometry while the dopant spin coherently precesses.

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  • A Mn dopant in a III-V semiconductor produces a highly-entangled, coherent triplet ground state not fully captured by single-determinant theories of electron structure.

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References & Citation Signals

[1] DOI https://doi.org/arXiv:2512.01158 [2] arXiv https://arxiv.org/abs/2512.01158 [3] Publisher https://arxiv.org/abs/2512.01158

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