Wannier function
From Wikipedia, the free encyclopedia
The Wannier functions are a complete set of orthogonal functions used in solid-state physics. They were introduced by Gregory Wannier.
The 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.
[edit] Links
- "The structure of electronic excitation levels in insulating crystals," G. H. Wannier, Phys. Rev. 52, 191 (1937)
- Wannier90 computer code that calculates maximally localized Wannier functions
- Wannier Transport code that calculates maximally localized Wannier functions fit for Quantum Transport applications
