Wannier function

noun1

1. •
   Any of a set of orthogonal functions used in solid-state physics; they are the localized molecular orbitals of crystalline systems.

   • The Wannier functions (WF)^(35,36) are the most localized orbitals within the valence-band and conduction-band subspaces. Hence we will use WF as ϕₗ in Eqs (1) and (2). — 2016