Abstract
The method of "symmetric orthonormalization" is shown to have a least-squares property: it constructs those unique orthonormal functions which minimize the sum of squared distances (in Hilbert space) between each initial function and a corresponding function of the orthonormal set. The localization of Wannier functions is a consequence of this property, since they can be obtained from localized atomic orbitals by symmetric orthonormalization. The theorem further implies an optimal resemblance of Wannier functions to atomic orbitals.
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Publication Info
- Year
- 1957
- Type
- article
- Volume
- 105
- Issue
- 1
- Pages
- 102-103
- Citations
- 256
- Access
- Closed
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Identifiers
- DOI
- 10.1103/physrev.105.102