Multiparty-controlled remote preparation of four-qubit cluster-type entangled states

TL;DR

This paper proposes a method for multiparty-controlled remote preparation of four-qubit cluster states using GHZ-class states, achieving high success probability and perfect fidelity with maximally entangled channels.

Contribution

It introduces a new protocol for controlled remote state preparation of four-qubit cluster states employing GHZ-class channels, with high success probability and fidelity.

Findings

High success probability in state preparation

Perfect fidelity with maximally entangled channels

Feasible implementation with local operations and classical communication

Abstract

We present a strategy for implementing multiparty-controlled remote state preparation (MCRSP) for a family of four-qubit cluster-type states with genuine entanglements while employing, Greenberg-Horne-Zeilinger-class states as quantum channels. In this scenario, the encoded information is transmitted from the sender to a spatially separated receiver via the control of multi-party. Predicated on the collaboration of all participants, the desired state can be entirely restored within the receiver's place with high success probability by application of appropriate local operations and necessary classical communication . Moreover, this proposal for MCRSP can be faithfully achieved with unit total success probability when the quantum channels are distilled to maximally entangled ones.