Wannier90 program becomes community code in major new release
Thursday, January 23, 2020 - 11:20
in Mathematics & Economics
Wannier functions were first introduced by Gregory Wannier in 1937 as an alternative way of describing the electronic ground state of periodic systems. They were linked to Bloch orbitals, the standard method of describing these ground states, by families of transformations in a continuous space of unitary matrices. Unfortunately, this was linked to a large degree of arbitrariness.