Understanding Dynamic Nuclear Polarization: Insights from Average Hamiltonian Theory

Average Hamiltonian Theory (AHT) effectively explains the mechanisms,
efficiencies, and optimal conditions for solid-state NMR pulse sequences.
In Dynamic Nuclear Polarization (DNP), AHT describes how electron-
nuclear spin couplings drive polarization transfer under microwave
irradiation. By simplifying spin dynamics, AHT offers insights into
polarization mechanisms like the solid effect, cross effect, and pulsed DNP,
helping predict conditions to maximize nuclear spin polarization and
enhance NMR signal sensitivity.

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