triqs.operators.util.extractors.quadratic_terms

triqs.operators.util.extractors.quadratic_terms()

Dispatched C++ function(s).

[1] (h: Operator)
  -> Operator

Keep only quadratic terms of a many-body operator \(\hat{h}\).

Parameters:

hOperator

Many-body operator \(\hat{h}\).

Returns:

Operator

Many-body operator containing only the quadratic terms.