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Wannier functionThe Wannier functions are a complete set of orthogonal functions used in solid-state physics. They were introduced by Gregory Wannier. Additional recommended knowledgeThe Wannier functions for different lattice sites in a crystal are orthogonal, allowing a convenient basis for the expansion of electron states in certain regimes. Wannier functions have found widespread use, for example, in the analysis of binding forces acting on electrons; they have proven to be in general localized, at least for insulators, in 2006[1]. Specifically, these functions are also used in the analysis of excitons. References
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This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Wannier_function". A list of authors is available in Wikipedia. |