Multi-Hop Quantum Communication Based on Greenberger-Horne-Zeilinger States and Teleportation

Abstract

Quantum teleportation faithfully transfers the quantum state of a physical system, instead of the system itself, which underlies the proposal of global quantum communication network. In this paper, we propose a faithful multi-hop quantum communication scheme. In a quantum network, different types of Greenberger-Horne-Zeilinger (GHZ) states are previously shared on quantum links. To implement qubits transmission, the sender and intermediate nodes perform quantum measurements in parallel, and then send their measurement results and the types of previously shared GHZ states to the receiver independently. A general formula is deduced for the receiver, who chooses an appropriate unitary operation to perform on the local particle, the original qubit can be retrieved. Our scheme shows advantages in quantum communication delay. INDEX TERMS Quantum communication network, GHZ, qubit transmission.

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“…Several quantum-based communication solutions in the literature were examined, which encompasses aspects of the development and application of quantum communication technologies. The selected studies have been given an identifier (SID) followed by citation e.g S#[<ref>] as follows: S1(Kozlowski et al, 2020), S2(Abulkasim et al, 2019), S3(Chen et al, 2020), S4(Khawasik et al, 2022), S5(Li et al, 2019), S6(Li et al, 2022), S7(Lou et al, 2019), S8(Ntanos et al, 2021), S9(Pan et al, 2020), S10(N., S11(Zimmer et al, 2021), S12(Tanizawa & Futami, 2020), S13(Tanizawa & Futami, 2022). Four categories were identified and divided into quantum cryptography, quantum teleportation, quantum networks and other areas of quantum communication.…”