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Single Impurity Electronics for Quantum Computing Anisotropic Hyperfine Interaction (AHF)

Single Impurity Electronics for Quantum Computing Anisotropic Hyperfine Interaction (AHF). Challenge / Objective: Can a single impurity donor wavefunction(wf) be experimentally mapped? Approach: Indirectly probe wfs by measuring anisotropic hyperfine (AHF) tensor components.

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Single Impurity Electronics for Quantum Computing Anisotropic Hyperfine Interaction (AHF)

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  1. Single Impurity Electronics for Quantum ComputingAnisotropic Hyperfine Interaction (AHF) • Challenge / Objective: • Can a single impurity donor wavefunction(wf) be experimentally mapped? • Approach: • Indirectly probe wfs by measuring anisotropic hyperfine (AHF) tensor components. • Use Si-29 as a single probe atom or a sample of probe atoms • Calculate donor wfs in realistic geometries and electric fields • Propose experiment:Distort wf by electric fields and interfaces => distort AHF => measure AHF based on lattice symmetries=> map the wavefunction • Results / Impact: • Demonstrated numerical stability of AHF calculation through semi-analytic comparison (toy wavefunctions) • Demonstrated distortion of tight binding wavefunctions and toy wfs of different symmetries produce signature AHF maps. • Preparing a full journal publications Magnetic Dipolar (super hyperfine) Interaction ENDOR Experiments can measure Aij --> Indirect measure of WF

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