Helper functions
-
triqs.operators.util.op_struct.
get_mkind
(off_diag, map_operator_structure)[source] Set function that makes the index for operators and GF blocks for a given spin and orbital name.
Parameters: - off_diag (boolean) – Do we have (orbital) off-diagonal elements? If yes, the operators and blocks are denoted by (‘spin’, ‘orbital’), otherwise by (‘spin_orbital’,0).
- map_operator_structure (dict) – Mapping of names of GF blocks names from one convention to another,
e.g. {(‘up’, 0): (‘up_0’, 0), (‘down’, 0): (‘down_0’,0)}.
If provided, the operators and blocks are denoted by the mapping of
('spin', 'orbital')
.
Returns: mkind – The function mapping spin and orbital names to a tuple.
Return type: lambda
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triqs.operators.util.op_struct.
set_operator_structure
(spin_names, n_orb, off_diag)[source] Set the operator_structure for given spin and orbital names, according to whether or not the Green’s functions contain off-diagonal blocks.
Parameters: - spin_names (list of strings) – Names of the spins, e.g. [‘up’,’down’].
- n_orb (int) – Number of orbitals.
- off_diag (boolean) – Do we have (orbital) off-diagonal elements? If yes, the operators and blocks are denoted by (‘spin’, ‘orbital’), otherwise by (‘spin_orbital’,0).
Returns: op_struct – The structure of the operators [block:[inner], … ].
Return type: list