gftool.matrix.construct_gf¶
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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_inv(N, N) complex np.ndarray
The inverse of the matrix of right eigenvectors (\(P^{-1}\))
- diag_inv(N) array_like
The eigenvalues (\(h\))
- rv(N, N) complex np.ndarray
The matrix of right eigenvectors (\(P\))
- Returns
- gf(N, N) complex np.ndarray
The Green’s function