Donor electron and nuclear spins
Single dopant atoms can host localized spin memories.
$$H=A\mathbf S\cdot\mathbf I+g_e\mu_B\mathbf B\cdot\mathbf S$$
Physical intuition
Single dopant atoms can host localized spin memories.
Deep dive: physical mechanism
Hyperfine coupling links a donor electron to its nuclear spin.
What is measured experimentally?
ESR and NMR spectroscopy resolve hyperfine transitions.
Assumptions, noise and limitations
Placement precision and donor–interface coupling affect reproducibility.
Research and simulation exercise
Diagonalize the electron–nuclear hyperfine Hamiltonian.
Connect the ideas
Explore the chapter overview, learning path, and references.