fqe.expectationValue

Return the expectation value for the passed operator and wavefunction

fqe.expectationValue(
    wfn: "wavefunction.Wavefunction",
    ops: Union['hamiltonian.Hamiltonian', 'FermionOperator'],
    brawfn: Optional['wavefunction.Wavefunction'] = None
) -> complex

Args
wfn (wavefunction.Wavefunction) - an FQE wavefunction on the ket side ops (FermionOperator) - a Fermion Operator string to apply to the wavefunction brawfn (wavefunction.Wavefunction) - an FQE wavefunction on the bra side if not specified, it is assumed that the bra nad ket wave functions are the same

Args

wfn (wavefunction.Wavefunction) - an FQE wavefunction on the ket side

ops (FermionOperator) - a Fermion Operator string to apply to the wavefunction

brawfn (wavefunction.Wavefunction) - an FQE wavefunction on the bra side if not specified, it is assumed that the bra nad ket wave functions are the same

Returns
(complex) - expectation value

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Last updated 2021-10-18 UTC.

fqe.expectationValue

Args

Returns