Efficient schemes for the quantum teleportation of a sub-class of tripartite entangled states

TL;DR

This paper introduces two efficient quantum teleportation schemes for a specific class of tripartite states, utilizing fewer resources and achieving perfect fidelity compared to existing methods.

Contribution

It presents novel teleportation protocols using four-qubit cluster states and Bell pairs that reduce quantum cost, gate count, and classical communication.

Findings

Achieves perfect teleportation of tripartite states

Uses fewer quantum resources than previous schemes

Demonstrates improved efficiency in quantum circuit design

Abstract

In this paper we propose two schemes for teleportation of a sub-class of tripartite states, the first one with the four-qubit cluster state and the second one with two Bell pairs as entanglement channels. A four-qubit joint measurement in the first case and two Bell measurements in the second are performed by the sender. Appropriate unitary operations on the qubits at the receiver's end along with an ancilla qubit result in the perfect teleportation of the tripartite state. Analysis of the quantum circuits employed in these schemes reveal that in our technique the desired quantum tasks are achieved with lesser quantum cost, gate count and classical communication bits compared with other similar schemes.