<div dir="ltr">Dear All,<div><br></div><div style>Does anyone know if it is possible to transform the current h(r) matrix elements, which is in the WF-basis, to (say an atom centered) atomic-orbital basis within wannier90? The transformation might be lossy (i.e. it might be a projection) depending on the system of course, but would be good to compare with other TB-fitting codes which use such atomic-orbital basis to represent the Hamiltonian. </div>
<div style><br></div><div style>Also, in the current wannier90 code, I supposed the WFs are orthogonal in the unit cell due to periodicity i.e. WF(n,R)(r) = WF(n,0)(r-R). But I don't see that when I print the sum(wf(nx,ny,nz,wan_ind)*conjg(wf(nx,ny,nz,wan_ind)), where {n} is the real space grid inside the wannier_plot_supercell, which is '1' in my test case i.e. the unit cell. What am I missing, is the sum needed over the supercell corresponding to the k-mesh i.e. {n} is {kx,ky,kz}?</div>
<div style><br></div><div style>Thanks.</div><div style>Ganesh</div><div style><br></div></div>