pythtb.Wannier.tilde_states

property Wannier.tilde_states

Bloch-like states \(\tilde{\psi}_{n\mathbf{k}}\).

These states are Fourier transformed to build Wannier functions and are related to reference states by a (semi-)unitary gauge rotation:

\[|\tilde{\psi}_{n\mathbf{k}} \rangle = \sum_{m=1}^{N} U_{mn}^{(\mathbf{k})} |\psi_{m\mathbf{k}} \rangle\]

Returns:

WFArray

Current Bloch-like states.

Raises:

ValueError

If tilde states have not been initialized.