An Optimized Scheme for JRSP of an Equatorial Four-Qubit Cluster State with Minimum Resource

Abstract

We propose a scheme for joint remote state preparation of an equatorial four-qubit cluster state via the quantum channel composed of two same GHZ states. In our scheme, the number of participants for JRSP can be arbitrary. The participants share the phase information of the target state. Each participant carries out corresponding measurements and informs the result to the receiver. Finally, by introducing auxiliary particles and performing appropriate unitary operations, the receiver enables to recover the equatorial four-qubit cluster state. Compared with other JRSP schemes, we have been able to achieve the preparation of an equatorial four-qubit cluster state with 100% success probability. Our scheme is of high efficiency due to the consumption of minimum resource.