Quantum teleportation by utilizing helical spin chains for sharing entanglement

TL;DR

This paper presents a novel protocol for quantum entanglement sharing using helical multiferroic spin chains, enhanced by a kicking electric field scheme, outperforming traditional models even with decoherence and impurities.

Contribution

The study introduces a new entanglement sharing protocol utilizing helical multiferroic spin chains with a kicking electric field scheme, improving fidelity under realistic conditions.

Findings

Kicking scheme enhances teleportation fidelity.

Helical multiferroic chains outperform XXZ and XX models.

Protocol remains effective with impurities and decoherence.

Abstract

We develop a new protocol for sharing entanglement (one ebit) between two parties using the natural dynamics of helical multiferroic spin chains. We introduce a novel kicking scheme of the electric field for enhancing the teleportation fidelity in our protocol that works in the presence of an appropriate choice of parameters. We also investigate the effect of a common spin environment causing decoherence in the entanglement sharing channel. We compare the results to that of XXZ and XX models subject to a similar entanglement sharing protocol and find that the helical multiferroic chain with the kicking scheme provides a better singlet fraction. We show that the kicking scheme in conjugation with the optimized parameters enhances the fidelity of teleportation even in the presence of impurities and/or decoherence. The advantage of the kicking scheme shown in the impurity cases is an important result to be useful in a realizable setup of helical multiferroic spin chain.