fastdla.generators.z2lgt_hva.z2lgt_dense_translation_eigenspace
- fastdla.generators.z2lgt_hva.z2lgt_dense_translation_eigenspace(jphase, basis=None, num_fermions=None, npmod=np)
Extract the \(j`th eigenspace of the translation :math:`T_2\).
- Parameters:
jphase (
int) – Integer \(j\) of the \(T_2\) eigenvalue \(e^{2\pi i j/N_f}\).basis (
Optional[numpy.ndarray]) – The basis matrix \(B\).num_fermions (
Optional[int]) – \(N_f\).
- Return type:
numpy.ndarray- Returns:
A matrix whose columns form the orthonormal basis of the eigen-subspace.