triqs.gf.gf.Gf
-
class
triqs.gf.gf.Gf(**kw)[source] TRIQS Greens function container class
Parameters: - mesh (Types defined in triqs.gf beginning with 'Mesh') – The mesh on which the Green function is defined.
- data (numpy.array, optional) – The data of the Greens function.
Must be of dimension
mesh.rank + target_rank. - target_shape (list of int, optional) – Shape of the target space.
- is_real (bool) – Is the Greens function real valued?
If true, and target_shape is set, the data will be real.
Mutually exclusive with argument
data. - name (str) – The name of the Greens function for plotting.
Notes
One of
target_shapeordatamust be set, and the other must be None.
Methods
__init__(**kw) |
|
conjugate() |
Conjugate of the Greens function. |
copy() |
Deep copy of the Greens function. |
copy_from(another) |
Copy the data of another Greens function into self. |
density(*args, **kwargs) |
Compute the density matrix of the Greens function |
enforce_discontinuity(*args, **kw) |
Signature : (gf_view<triqs::gfs::legendre,matrix_valued> gl, matrix_view<double> disc) -> None Modify the coefficient to adjust discontinuity |
fit_hermitian_tail(*args, **kw) |
tail |
fit_hermitian_tail_on_window(*args, **kw) |
Signature : (gf_const_view<imfreq,matrix_valued> g, int n_min, int n_max, array_const_view<dcomplex,3> known_moments, int n_tail_max, int expansion_order) -> std::pair<array<dcomplex,3>, double> Fits the tail on the [n_min, n_max] window + negative counter part with the contraint of hermitian moment matrices |
fit_tail(*args, **kw) |
tail |
fit_tail_on_window(*args, **kw) |
Signature : (gf_const_view<imfreq,matrix_valued> g, int n_min, int n_max, array_const_view<dcomplex,3> known_moments, int n_tail_max, int expansion_order) -> std::pair<array<dcomplex,3>, double> Fits the tail on the [n_min, n_max] window + negative counter part |
from_L_G_R(L, G, R) |
Matrix transform of the target space of a matrix valued Greens function. |
inverse() |
Computes the inverse of the Greens function. |
invert() |
Inverts the Greens function (in place). |
is_gf_hermitian(*args, **kw) |
Signature : (gf<imfreq,scalar_valued> g, float tolerance = 1.e-12) -> bool |
is_gf_real_in_tau(*args, **kw) |
Signature : (gf<imfreq,scalar_valued> g, float tolerance = 1.e-12) -> bool |
rebinning_tau(*args, **kw) |
Signature : (gf_view<imtime,matrix_valued> g, size_t new_n_tau) -> gf<imtime, matrix_valued> Rebins the data of a GfImTime on a sparser mesh |
replace_by_tail(*args, **kw) |
Signature : (gf_view<imfreq,matrix_valued> g, array_const_view<dcomplex,3> tail, int n_min) -> None Replace the function by the evaluation of the tail for |n| > n_min |
replace_by_tail_in_fit_window(*args, **kw) |
Signature : (gf_view<imfreq,matrix_valued> g, array_const_view<dcomplex,3> tail) -> None Replace the function by the evaluation of the tail for |n| > n_min |
set_from_fourier(*args, **kw) |
Fills self with the Fourier transform of g_in |
set_from_imfreq(*args, **kw) |
Fills self with the legendre transform of gw |
set_from_imtime(*args, **kw) |
Fills self with the legendre transform of gt |
set_from_legendre(*args, **kw) |
Fills self with the legendre transform of gl |
set_from_pade(*args, **kw) |
Signature : (gf_view<refreq,scalar_valued> gw, gf_view<imfreq,scalar_valued> giw, int n_points = 100, float freq_offset = 0.0) -> None |
total_density(*args, **kwargs) |
Compute total density. |
transpose() |
Take the transpose of a matrix valued Greens function. |
x_data_view([x_window, flatten_y]) |
Helper method for getting a view of the data. |
zero() |
Set all values to zero. |
Attributes
data |
Raw data of the Greens function. |
imag |
A Greens function with a view of the imaginary part. |
indices |
|
mesh |
The mesh of the Greens function. |
rank |
The mesh rank (number of meshes). |
real |
A Greens function with a view of the real part. |
target_indices |
A generator for the target space integer tuples |
target_rank |
The rank of the target space. |
target_shape |
The shape of the target space. |