gftool.matrix.construct_gf
- gftool.matrix.construct_gf(rv, diag_inv, rv_inv)[source]
Construct Green’s function from decomposition of its inverse.
\[G^{−1} = P h P^{-1} ⇒ G = P h^{-1} P^{-1}\]It is recommended to directly use
Decomposition.reconstructinstead.- Parameters:
- rv(N, N) complex np.ndarray
The matrix of right eigenvectors (\(P\)).
- diag_inv(N) array_like
The eigenvalues (\(h\)).
- rv_inv(N, N) complex np.ndarray
The inverse of the matrix of right eigenvectors (\(P^{-1}\)).
- Returns:
- (N, N) complex np.ndarray
The Green’s function.