netket.operator.boson.numberΒΆ

netket.operator.boson.number(hilbert, site, dtype=<class 'float'>)[source]ΒΆ

Builds the number operator \(\hat{a}^\dagger\hat{a}\) acting on the site-th of the Hilbert space hilbert.

If hilbert is a non-Bosonic space of local dimension M, it is considered as a bosonic space of local dimension M.

Parameters
  • hilbert (AbstractHilbert) – The hilbert space

  • site (int) – the site on which this operator acts

  • dtype (Any) –

Return type

LocalOperator

Returns

The resulting Local Operator