fastdla.generators.z2lgt_hva.z2lgt_t2_eigenspace
- fastdla.generators.z2lgt_hva.z2lgt_t2_eigenspace(num_fermions, momentum, basis=None, npmod=np)
Extract the \(j`th eigenspace of the translation :math:`T_2\).
- Parameters:
num_fermions (
int) – \(N_f\).momentum (
int) – Integer \(j\) of the \(T_2\) eigenvalue \(e^{2\pi i j/N_f}\).basis (
Optional[numpy.ndarray]) – The basis matrix \(B\).
- Return type:
numpy.ndarray- Returns:
A matrix whose columns form the orthonormal basis of the eigen-subspace.