  To optimize the entanglement detection, we formulate the metrologically
operational entanglement condition in quantum Fisher information(QFI) by
maximizing the QFI on the measurement orbit. Specifically, we consider two
classes of typical local observables, i.e. the local orthonormal observables
(LOO) and symmetric informationally complete positive operator-valued measures
(SIC-POVM). Result shows that the SIC-POVM is superior to LOO in entanglement
detection, which in some sense hints the yet unconfirmed generally superiority
of SIC-POVM in quantum information processing.
