[gf<retime>] Real time¶
This is a specialisation of gf and views for imaginary Matsubara frequencies.
Synopsis¶
gf<retime, Target, Opt>
The Target template parameter can take the following values:
| Target | Meaning |
|---|---|
| scalar_valued | The function is scalar valued (double, complex…). |
| matrix_valued [default] | The function is matrix valued. |
Domain & mesh¶
Singularity¶
The singularity is a high frequency expansion, High-Frequency moments of the Green’s function.
Evaluation method¶
- Linear interpolation on the mesh.
- Return type:
- If Target==scalar_valued: a complex
- If Target==matrix_valued: an object modeling ImmutableMatrix concept.
- When the point is outside of the mesh, the evaluation of the gf returns:
- the evaluation of the high frequency tail
Data storage¶
- If Target==scalar_valued :
- data_t: 1d array of complex<double>.
- g.data()(i) is the value of g for the i-th point of the mesh.
- If Target==matrix_valued :
- data_t: 3d array (C ordered) of complex<double>.
- g.data()(i, range(), range()) is the value of g for the i-th point of the mesh.
HDF5 storage convention¶
h5 tag: ReTime