Multiparty-controlled Joint Remote Preparation of an Arbitrary Four-qubit Cluster-type State via Two Different Entangled Quantum Channels

摘要

To satisfy the requirements of quantum network communication, we attempt to investigate how to elaborate multiparty-controlled joint remote state preparation(MCJRSP), especially many-to-many MCJRSP. The key to such protocols is how to design some high-dimensional real unitary matrices to reflect the amplitude information of desired states. Fortunately, with the help of Hurwitz matrix equation, we put forward two N-to-2 multiparty-controlled joint remote state preparation protocols of an arbitrary four-qubit cluster-type state. The highlight of our paper embodies in two aspects. On the one hand, under the supervision of some controllers, two distant receivers can reconstruct the desired states simultaneously. On the other hand, we take into account two different entangled quantum channels and employ the optimal positive operator-valued measure to recover the desired states in the case of non-maximally entangled quantum ones.