triqs_dft_tools.sumk_dft_tools.SumkDFTTools.analyse_deg_shells
- SumkDFTTools.analyse_deg_shells(G, threshold=1e-05, include_shells=None)
Determines the degenerate shells of local Green’s functions by analysing the structure of the corresponding non-interacting Green’s function. The results are stored in the
SumkDFT.block_structure
attribute.Due to the implementation and numerics, the maximum difference between two matrix elements that are detected as equal can be a bit higher (e.g. a factor of two) than the actual threshold.
- Parameters:
G : list of BlockGf of GfImFreq or GfImTime
the non-interacting Green’s function for each inequivalent correlated shell
threshold : real, optional
If the difference between matrix elements is below threshold, they are considered to be equal.
include_shells : list of integers, optional
List of correlated shells to be analysed. If include_shells is not provided all correlated shells will be analysed.