Projected Density of States

Current status: READY

A projected DOS is

$$D_\alpha(E) = \sum_{n\mathbf k} w_{\mathbf k} |\langle\phi_\alpha|\psi_{n\mathbf k}\rangle|^2 \delta(E-\epsilon_{n\mathbf k}).$$

For collinear spin, separate up/down channels are meaningful.

For SOC, Quantum Studio must not invent conventional spin-up/down channels from a noncollinear spinor calculation. See SOC PDOS.