Entanglement transformation between ensembles of three-qubit GHZ-type states by LOCC

We present a novel method to verify whether an ensemble of three-qubit GHZ-type state could be transformed to another one by local operations and classical communication (LOCC). This result highlights intriguing similarity compared with the case in the transformation between two ensembles of two-qubit states. Our approach may provide a splendid insight into the transformations between two general multipartite states.