netket_foundation.observable.SusceptibilityObservable

class netket_foundation.observable.SusceptibilityObservable

Bases: AbstractObservable

Observable for the fidelity susceptibility matrix.

Registers with NetKet’s LocalEstimator dispatch so that vstate.expect(obs) and vstate.expect_to_precision(obs, ...) work out of the box.

Parameters:

hilbert (TypeVar(HilbertType, bound= AbstractHilbert)) – Hilbert space of the variational state (vstate.hilbert).

Attributes