triqs.operators.operators.n

triqs.operators.operators.n()

Dispatched C++ function(s).

[1] ()
  -> Operator

[2] (indices: int | str | float | [int, len = 3])
  -> Operator

[3] (indices0: int | str | float | [int, len = 3],
     indices1: int | str | float | [int, len = 3])
  -> Operator

[4] (indices0: int | str | float | [int, len = 3],
     indices1: int | str | float | [int, len = 3],
     indices2: int | str | float | [int, len = 3])
  -> Operator

[5] (indices0: int | str | float | [int, len = 3],
     indices1: int | str | float | [int, len = 3],
     indices2: int | str | float | [int, len = 3],
     indices3: int | str | float | [int, len = 3])
  -> Operator

Create a number operator \(\hat{n}_{\alpha} = \hat{c}_{\alpha}^{\dagger} \hat{c}_{\alpha}\).

Parameters:

indicesint | str | float | [int, len = 3]

\(\beta_1, \dots, \beta_k\) that form the index \(\alpha\).

Returns:

Operator

Many-body operator \(\hat{O} = \hat{n}_{\alpha} = \hat{c}_{\alpha}^{\dagger} \hat{c}_{\alpha}\).