A matrix-logarithm self-consistent interpolation for the Berry connection improves accuracy over prior schemes by respecting the full overlap matrix structure and relating basis incompleteness to the invariant spread functional.
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Self-consistent evaluation of the Berry connection for Wannier functions
A matrix-logarithm self-consistent interpolation for the Berry connection improves accuracy over prior schemes by respecting the full overlap matrix structure and relating basis incompleteness to the invariant spread functional.