Exchanging quantum correlations and non-local information between three qubit-syatem

TL;DR

This paper investigates how quantum correlations and non-local information can be exchanged among three qubits through Dzyaloshinskii-Moriya interactions, highlighting control parameters and the potential to maximize and sustain quantum correlations.

Contribution

It introduces a detailed analysis of quantum correlation exchange via DM interactions and compares its effectiveness to dipole interactions, offering insights into controlling quantum correlations.

Findings

DM interaction more effectively generates entanglement than dipole interaction

Quantum correlations can be maximized by increasing interaction strength and initial correlations

Long-lived quantum correlations are achievable through dipole interaction control

Abstract

The possibility of exchanging the quantum correlations and the non-local information between three qubits interact directly or indirectly via Dzyaloshinskii-Moriya (DM)is discussed. The initial state settings and the interaction strength represent control parameters on the exchanging phenomena. The non-local information that encoded on the different partitions doesn't exceed the initial one. It is shown that, the ability of DM interaction to generate entanglement is larger than that displayed for the dipole interaction. The possibility of maximizing the quantum correlations between the three qubits increases as one increase the strength of interaction and starting with large initial quantum correlations. The long-lived quantum correlations could be achieved by controlling the strength of the dipole interaction.