  We construct a quantum-control-assisted multi-observable variance-based
uncertainty relation, and the uncertainty relation obtained indicates that we
can prepare a quantum state, in which the measurement results of any
observables can be predicted precisely with the help of quantum control and
entanglement resource. The new variance-based uncertainty relation provides a
concept of "multiparticle entanglement resolution lines" for multiparticle
entangled pure states, that can delineate different multiparticle entanglement
classes, and thus it can be considered as an analyzer of multiparticle
entanglement classes. The analyzer is used to identify different multiparticle
entanglement classes with a suitable number of incompatible measurements,
without a complete knowledge of the quantum state.

Quantum Physics