5.17.2. operators.Idag¶
- eminus.operators.Idag(atoms, W, ik=-1, full=False)[source]¶
Conjugated backward transformation from real-space to reciprocal space.
This operator acts on options 1 and 2.
Reference: Comput. Phys. Commun. 128, 1.
- Parameters:
atoms – Atoms object.
W – Expansion coefficients of unconstrained wave functions in reciprocal space.
- Keyword Arguments:
ik – k-point index.
full – Whether to transform in the full or in the active space.
- Returns:
The operator applied on W.