negligible.

Very interestingly, as shown in Fig. \[dynamics GEM\], the GME for the three-qubit entanglement never vanishes, in sharp contrast with bipartite entanglement. During the vanishment of concurrence, the GME is generally small but still finite. It follows that the two-qubit state is separable in the system, but the three-qubit state still contains residual entanglement. This may be one advantage to using GME as a quantum information resource.

Finally, it is significant to clarify why the GME of the tripartite entanglement behaves differently with the concurrence of the bipartite entanglement. The well-known death of the concurrence is related to the disappearance of the entanglement in an arbitrary two-qubit subsystem, say A and B, while a deep understanding is associated with the question of whether there exists entanglement in the three-qubit system. Intuitively, we may think that entanglement is still stored in the bipartition $AB|C$. Negativity is used to detect the entanglement for this bipartition [@vidal2], which falls off to a nonzero minimum in Fig. \[entanglement\]. It reveals that the state for the bipartition $AB|C$ is not a separable state. Similarly, those states with respect to other bipartitions $AC|B$ and $BC|A$ are not separable. Therefore, the three-qubit state stays in an 